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Toronto, Canada - January 16th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its T.30 fax control protocol software. It implements ITU-T T.30 Recommendation, which is a procedure for document facsimile transmission in the general switched telephone network. GAO¡¯s T.30 software is targeted for fax applications as handshaking protocol.
This T.30 fax control protocol software establishes and manages communications between two fax modems. There are five phases of operation covering call set up, pre message procedure (selecting the communication mode), message transmission (including phasing and synchronization), post message procedure and call release.
GAO's T.30E software implements the procedure for Group 3 (G3 fax) document fax transmission of continuous-tone color images. T.30E enables the efficient transmission of high quality, full color and gray-scale images over GSTNs and other networks.
This AGC software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone, Acoustic Echo Cancellation Software (AEC), Caller ID Software and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - January 8th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its Automatic Gain Control (AGC) software for speech processing. AGC is an ideal solution for applications requiring consistent audio levels.
This automatic gain control (AGC) software features wide dynamic range, low data and program memory requirements and selectable depth and envelop of the gain control. It consists of two parts: voice activity detection and gain control. It adaptively controls the dynamic range of a speech signal without amplifying the noise between words and phrases. It effectively reduces the volume if the signal is strong and raises it when it is weaker. This AGC software consists of two user-callable functions, AGCinit and AGC. The AGC software is implemented in assembly or C. In addition, it integrates easily with MP3, MPEG, TCP/IP and most popular real-time operating system.
This fax control protocol software belongs to GAO's family of Fax software. This line includes a wide variety of fax software products with different bit rates such as V.34 Fax Modem Software (maximum bit rate of 33.6 Kbps), V.29 Fax Software (maximum bit rate of 9.6 Kbps) and other similar products. This line also includes AT Fax Command Set, T.30 Fax Control Protocol Software and T.38 Fax Relay Software. The embedded fax software has been integrated and tested with fax data pumps that provide interfaces to PCM data.
Toronto, Canada - December 19th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its caller ID software, which is ideal for analog or digital telephones, video conferencing and answering machines.
This Caller Identification (ID) Software consists of two user-callable functions that perform the initialization and identification operations. It features highly optimized assembly or C implementations and complete caller ID information including name, number, time and date.
Based on the Bell 202 or the V.23 standard, it has the ability to perform Caller ID on Call Waiting (Type II) test and simulation. It also performs non-volatile storage of test programs/scripts and results. Additionally, it is available for tests for virtually any international market and under different line length conditions. This software also features low data and program memory requirements.
This Caller Identification (ID) Software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Call Progress (CP) software, Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone, Acoustic Echo Cancellation Software (AEC) and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - December 11th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its G.165 line echo cancellation (LEC) software used in long distance voice communication especially in links involving satellite networks and intercontinental long-haul circuits.
This G.165 line echo cancellation software features double-talk detection which avoids divergence during double talk. It cancels electrical line echoes caused by 2-to-4 wire conversion hybrids in telephone lines. The line echo canceller is also designed for integration with other software modules from GAO such as our DTMF Encoder/Decoder to enhance performance.
GAO's G.165 line echo cancellation software is implemented in assembly or C and consists of two user-callable functions which perform echo cancellation and initialization operations. This software is compliant with the ITU G.165 recommendation and is ideal for full-duplex operation.
This G.165 line echo cancellation software belongs to GAO's family of Telephony Software. This line of products provides easy integration into other systems, easy maintenance and a smooth upgrade path for next-generation customer products. It includes Dual Tone Multi-Frequency (DTMF) Software, Voice Activity Detector (VAD), Adaptive Noise Suppression Algorithm and other similar products. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - December 4th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its multi-frequency (MF) R1/R2 software with highly optimized assembly or C implementation. It is fully compliant with the ITU-T Recommendations Q.320, Q.322, Q.323, and Q.441 for multi-frequency signal receiving equipment.
This MF R1/R2 software features low data and program memory requirements. Signalling systems R1 and R2 are used for inter-register signalling. The R1 signalling system is specified by the ITU-T as the North American standard and the R2 signalling system the specification used in Europe.
Both R1 and R2 signalling systems consist of two parts: line signalling and register signalling. Line signalling is used to handle line and supervisory signals. Register signalling is used for address signals. R1 Register signalling handles address signals using MF in-band pulse signalling at frequencies of 700 to 1700 Hz at 200 Hz increments. The combination of two of these frequencies determines the signal. R2 Register signalling handles address signals also by sending a combination of two fundamental frequencies. The R2 system uses two different sets of six frequencies to combine for the forward and backward signals.
This MF R1/R2 software belongs to GAO's family of Telephony Software. Other products in this line include Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone. This line also includes Acoustic Echo Cancellation Software (AEC), Voice Activity Detector (VAD), Comfort Noise Generator (CNG) and Automatic Gain Control (AGC) Software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - November 27th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its adaptive noise suppression algorithm to suppress both stationary and non-stationary background noise from speech.
By taking advantage of the signal characteristics of human speech, the algorithm extracts the signals of interest and adaptively cancels the noise that is present in the background.
Noises embedded in speech are especially perceivable when compressed and transmitted. Non-stationary background noises that change over time are even more perceivable when played back. By continuously tracking the characteristics of the noise signal, GAO's adaptive algorithm effectively eliminates this background noise, resulting in much clearer speech over the communication channel.
This adaptive noise suppression algorithm features real-time audio processing and uses C-callable functions. It provides natural sounding and undistorted speech output. The code is developed using ANSI C and can be ported to customers' platform of choice.
This adaptive noise suppression algorithm belongs to GAO's family of Telephony Software. This line includes Line Echo Canceller (LEC) Software, Dual Tone Multi-Frequency (DTMF) Software, Voice Activity Detector (VAD) and other similar products. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for Feature phones, Internet Phones multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - November 20th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its G.722.1 vocoder for wide-band audio compression. GAO Research's G.722.1 vocoder is compliant with the ITU-T standard and operates at bit rates of 24 kbps and 32 kbps. Like all wide-band speech coders, the speech signal is sampled at 16 kHz.
G.722.1 can handle speech and audio signal bandwidth up to 7 kHz, compared to 3.6 kHz in narrow band speech coders. G.722.1 vocoder is based on transform technology using a Modulated Lapped Transform (MLT). The vocoder operates on 20 msec frames (320 samples) of audio and has a look-ahead of 20 msec. The total algorithmic delay is 40 msec.
This G.722.1 speech vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of vocoders such as G.726 Vocoder and G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems and other similar products. GAO Research Inc. is a world-renowned provider of high quality, reliable telecommunications software including embedded modem software, fax modem software, speech codes, and telephony software for a wide range of DSPs and microprocessors.
Toronto, Canada - November 13th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its G.726 speech vocoder suited for numerous applications such as speech transmission over digital networks, video conferencing, multimedia, and ISDN communications.
GAO Research's G.726 vocoder converts a 64 kbps A-law or ¦Ì-law PCM channel to or from a 40, 32, 24 or 16 kbps channel. The conversion is applied to the PCM bit stream using an ADPCM transcoding technique. Thus, the scheme has switchable transmission rates providing 4 kHz of audio bandwidth in conformance with the ITU-T standard.
This G.726 vocoder complies with the ITU-T standard and operates at 40, 32, 24, and 16 kbps. ITU-T G.726 is a superset of the ITU-T G.721 and G.723 standards and was originally designed as a half-rate alternative to G.711 audio companding. G.726 can encode 13 or 14-bit PCM samples or 8-bit, A-law or ¦Ìlaw encoded data into 2, 3, 4, or 5-bit code words. Since the algorithm encodes one sample at a time, the coding or decoding delay is effectively zero, providing for robust, quality audio.
This G.726 vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of vocoders such as G.722.1 Vocoder and G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems and other similar products.
Toronto, Canada - November 6th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its Voice Activity Detector (VAD), Comfort Noise Generator (CNG) software which is intended to reduce the transmission rate during silence periods of speech. The system allows discontinuous transmissions which are based on a Voice Activity Detection (VAD) algorithm and a Comfort Noise Generator (CNG) algorithm that allows the insertion of an artificial noise during silent intervals of speech.
This feature enables it to effectively avoid noise modulation introduced when the transmission is switched off. If the background acoustic noise presented during active periods will abruptly disappear, this very unpleasant noise modulation may even reduce the intelligibility of the speech. The purpose of the VAD is to reliably detect the presence or absence of speech and to convey this information to the CNG algorithm. The purpose of the CNG algorithm is to create a noise that matches the actual background noise with a global transmission cost as low as possible.
This Voice Activity Detector (VAD), Comfort Noise Generator (CNG) belongs to GAO's family of Voice over IP software. Other products in the line include Digital Network Echo Canceller (ITU-T G.168) which is used for reducing the echo by digitally subtracting an estimated echo from the circuit echo, Dual Tone Multi-Frequency (DTMF) Software which has a variety of uses in telephone systems.and Automatic Gain Control (AGC) Software which is designed for speech processing applications.
Toronto, Canada - October 23rd, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.17 Fax Modem Software which implements all the mandatory features of the V.17 ITU-T international standard. It can work within a multi-tasking environment or as a stand-alone task and is optimized for various DSPs and processors such as TI C5000 and C6000 series DSPs, ARM processors and ADI DSPs.
The V.17 fax modem software enables fax modem operation at speeds ranging from 14.4 kbps to 2.4 kbps allowing it to connect even over noisy lines. It also uses QAM for the channel with synchronous line transmission at 2400 baud. The V.17 fax software features half-duplex mode of operation supporting V.24 interchange circuits and its frequency carrier operates at 1800 Hz with V.2 transmitted power level and 2400 symbols/s modulation rate.
The V.17 fax software provides exchange of rate sequences during start-up to establish the data-rate, coding and any other special facilities. Its trellis coding rates are from 7200 to 14000bps. In addition, it can be integrated with GAO's other data modem, telephony, speech compression, VoIP, FoIP, and video software for various applications.
This V.17 fax modem software belongs to GAO's family of Fax Software. Other products in the line include V.27, V.29 and V.34 fax software whose maximum bit rates are 4.8, 14.4 and 33.6 kbps. The family also includes T.38, T.30/T.30E and T.4 fax modem protocols.
Toronto, Canada - October 16th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.44 Data Compression Software which implements all the mandatory features of V.44 ITU-T international standard. It uses a new string-matching algorithm for a higher degree of data compression, thus increasing upload and download speeds providing a particularly noticeable improvement over V.42.
This V.44 data compression software consists of both an encoder and decoder. It is used with V-series data circuit-terminating equipment (DCEs) as well as packet switch networks such as the Internet. This software offers better compression performance for certain types of data than the V.42bis standard. Depending on the kind of data, compression ratios of 6:1 are attainable with V.44. It automatically switches between compressed and transparent modes, allowing overall performance gain without loss in throughput for file streams that are not compressible.
This V.44 data compression software belongs to GAO's family of Soft Modems. GAO also provides the full suite of modem software: V.92, V.90, V.34, V.32bis/ V.32, V.22bis/ V.22, V.23, V.21, Bell 212A, and Bell 202 software modems. These modem software can be integrated with GAO's other fax, telephony, speech compression, VoIP, FoIP, Imaging and Video software.
Toronto, Canada - September 28th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.92 Modem Software which performs duplex mode operation on the PSTN. It boasts increased upstream rates, quicker connect (QC), and Modem-On-Hold (MOH) feature that allows the modem to work in conjunction with call waiting.
This V.92 modem software is used for both the upstream and downstream connections, allowing for a maximum upload speed of 48 kb/s and a maximum download speed of 56 kb/s. It boasts adaptive techniques that enable the modems to achieve close to the maximum data signalling rates which the channel can support on each connection. It can also negotiate V.34 modulation upstream (downstream) if a connection will not support PCM modulation upstream (downstream).
The connection time of V.92 modem software is up to 50% quicker than V.90 for buffered connections. The V.92 Server Modem is a digital modem with a maximum transmission bit rate of 56 kbps and reception bit rate of 48 kbps. The V.92 Client Modem is an analog modem with a maximum bit rate of 56 kbps receive, 48 kbps transmit.
V.92 has the ability to temporarily put the 'Modem on Hold' (MOH) which is particularly useful for lines that have call waiting, allowing users to receive a phone call without having to disconnect from their Internet session. The MOH have a time limit of between 0 to 16 minutes which is set entirely at the discretion of the ISP. In addition, the software supports DSPs such as TI C5000 & C6000 series, ARM processors and ADI DSPs and OS such as Windows, VxWorks, and Linux.
This V.92 modem software belongs to GAO's family of Soft Modems. Other products in the family are V.90 Modem Software which has a maximum upload speed of 36.6 kb/s and a maximum download speed of 56 kb/s, and V.34 Modem Software which has a maximum bit rate of 36.6 kb/s. The family also includes ITU V.23 Modem Software, ITU V.21 Modem Software, and some other modem software. The line of products provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - September 21st, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.34 Fax Modem Software which implements all the mandatory features of V.34 ITU-T international standard and incorporates a higher level of optional capabilities, intelligence, and adaptability than the lower V. series modems to make the best use of the available conditions. It can be integrated with GAO's other data modem, telephony, speech compression, FoIP, VoIP, DSVD, imaging and video software for various applications.
This V.34 fax modem software supports data rates of 2.4 kbps up to 33.6 kbps in steps of 2.4 kbps. It enables full duplex, point-to-point 2 wire data communication over PSTN as well as leased circuits. The V34 modem software includes Trellis coding and shell mapping which makes it more robust over impaired channels. One of the most significant characters of the software is its use of increased bit rates to utilize maximum bandwidth permitted by the channel.
As compared to the lower speed fax modem software, GAO's V.34 fax modem software has adaptive bandwidth and carrier frequencies and provides adaptive signalling through line probing by adjusting to channel quality and capacity. In addition, it also utilizes QAM on each channel and operates in synchronous mode.
This V.34 fax modem software belongs to GAO's family of Fax Software. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors. Other options products in the family are V.17, V.27ter and V.29 whose maximum bit rates are 14.4, 4.8 and 9.6 kbps. The family also includes T.38, T.30/T.30E and T.4 fax modem protocols.
Toronto, Canada - September 7th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its dual tone multi-frequency (DTMF) software for telephone systems. It is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone.
This DTMF software is an implementation of a Dual-Tone Multi-Frequency (DTMF) generator and decoder. The DTMF generator and decoder consist of four user-callable functions that perform the generating, decoding, and initialization operations. The DTMF generator generates standard telephone digits as the sum of sinusoids corresponding to a frequency table for each digit. The DTMF decoder will take a digital signal as input and produce the decoded digit.
The DTMF software generates and decodes 8 kHz PCM samples. It is fully compliant to EIA / TIA - 464B 6.1.4 and 6.1.5 .1 to 6.1.5.5 standards. It also features low data and program memory requirements.
This dual tone multi-frequency (DTMF) software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Call Progress (CP) software which provides full call progress tone detection and generation functionality and operates on PCM samples, Acoustic Echo Cancellation Software (AEC) and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - September 1st, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its embedded caller identification (ID) software, a highly optimized implementation of the caller identification function available for a variety of DSPs and microprocessors. It is ideal for analog or digital telephones, video conferencing, and answering machines.
This Caller Identification (ID) Software consists of two user-callable functions that perform the initialization and identification operations. It features highly optimized assembly or C implementations and complete caller ID information including name, number, time, and date.
Based on the Bell 202 or the V.23 standard, it has the ability to perform Caller ID on Call Waiting (Type II) test and simulation. It also performs non-volatile storage of test programs/scripts and results.
Apart from the above, this software also features low data and program memory requirements and can test products for performance under poor line conditions.
This Caller Identification (ID) Software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Call Progress (CP) software, Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone, Acoustic Echo Cancellation Software (AEC) and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - August 29th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.34 Fax Modem Software which is the standard for dial up modems of up to 33,600bps. It provides adaptive signalling through line probing by adjusting to channel quality and capacity.
This V.34 fax modem software incorporates a higher level of optional capabilities, intelligence, and adaptability than the lower V. series modems to make the best use of the available conditions. It operates on 2-wire, point-to-point circuits and dial up or leased circuits.
The V.34 fax modem software features trellis coding and shell mapping which makes this modem a robust design for heavily impaired channels. One of the most significant characters of the software is its use of increased bit rates to utilize maximum bandwidth permitted by the channel. Unlike lower speed modem standards where nominal bandwidth was set using a fixed carrier frequency, both the bandwidth and carrier frequencies are adaptive in V.34. The V.34 fax modem provides data signaling rates from 2400 to 33600 bps. It also utilizes QAM on each channel and operates in synchronous mode.
This fax modem software belongs to GAO's family of Fax Software. Other options products in the family are V.17, V.29 and V.27ter whose maximum bit rates are 14.4, 9.6 and 4.8 kbps. The family also includes T.30/T.30E and T.4 fax modem protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - August 22nd, 2011 - GAO Research Inc.(www.GAOResearch.com) has launched its G.723.1 vocoder, a dual rate speech coder, which is available for applications such as video phones, audio/video conferencing and media gateways.
This G.723.1 dual rate speech coder performs compression and decompression of 8 kHz speech signals. It encodes 16-bit PCM samples into 16-bit code-words yielding 10 or 12 code-words per 240 sample frames for the 5.3 kbps and 6.3 kbps channels respectively.
GAO's G.723.1 software has switchable transmission rates over 5.3 or 6.3 kbps channels providing 4 kHz of quality speech bandwidth in conformance with the ITU-T standard. The higher bit rate has greater quality; the lower bit rate gives good quality and provides system designers with additional flexibility.
The ITU-T G.723.1 standard specifies a coded representation that can be used for compressing the speech or other audio signal component of multimedia services at a very low bit rate as part of the overall H.324 family of standards.
It encodes speech or other audio signals in frames using linear predictive analysis-by-synthesis coding. The excitation signal for the high rate coder is Multipulse Maximum Likelihood Quantization (MP-MLQ) and for the low rate coder is Algebraic-Code-Excited Linear-Prediction (ACELP).
Additionally, Silence Compression Scheme and Voice Activity Detection (VAD) are also included in this version.
This G.723.1 vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of vocoders such as G.722.1 Vocoder and G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems and other similar products.
Toronto, Canada - August 16th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.29 Fax Software. The embedded software implements the ITU-T V.29 Recommendation and provides full-duplex data transmission at rates of 9600, 7200, and 4800 bps over 4-wire leased lines.
The fax modem software consists of both transmission and receiving functions for symbol transfer in groups of 2 or 4 bits at rates of 2400 symbols per second respectively. It operates in either half or full duplex modes and has a "quick connect" feature.
Using the Group 3 fax (G3 fax) modulation technique, it offers fax data transfer at 9600 bps and 7200 bps on two-wire lines. The fax software is available for a number of DSP and microprocessors. All GAO software are subject to the most stringent quality control procedures, which is reflected in its well structured code, detailed design documentation, and well-defined design and test plans. This ensures ease of integration into the user's system, easy maintenance, and a smooth upgrade path for next-generation products.
Additionally, it can operate within a multi-tasking environment or as a stand-alone task and is highly optimized for fixed-point arithmetic.
This fax modem software belongs to GAO's family of Fax Software. Other products in the line include V.27, V.17 and V.34 fax software whose maximum bit rates are 4.8, 14.4 and 33.6 kbps. This line also includes T.30/T.30E and T.4 fax modem protocols, and T.38 fax relay protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - August 8th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its Call Progress (CP) software for telephone network systems. It provides full call progress tone detection and generation functionality and operates on PCM samples.
The Call Progress (CP) software consists of two user-callable functions that perform the detection, generation, and initialization operations.
Using a tonal signaling standard, it is able to acquire connections between subscribers in telephone network systems and to indicate the status of the incoming and outgoing phone calls. The software module allows for such signals as Dial Tone, Busy Tone, Congestion Signal, Ring Back and Off Hook.
Apart from the above, this software also features low data and program memory requirements and can be easily configured to different cadences and tones.
This Call Progress (CP) software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone, Acoustic Echo Cancellation Software (AEC) and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - August 4th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its G.728 LD-CELP vocoder for digital circuit multiplication equipment, videoconferencing, digital telephony, and multimedia products.
This G.728 vocoder operates at 16 kbps and implements the low delay code-excited linear prediction (LD-CELP) speech compression technique specified in the ITU-T standard and provides approximately 4 kHz of speech bandwidth.
Using backward-adaptive linear predictive coding analysis, it is able to achieve a low transcoding delay of 2 ms.
The ITU-T G.728 standard specifies the encoding of 8 kHz sampled speech signals for transmission over a 16 Kbps channel.
Apart from the above, this G.728 vocoder uses adaptive post filter to enhance performance for multiple transcodings(VAD).
This G.728 LD-CELP vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of speech vocoders for speech processing software and audio processing codecs, such as G.729, G.729A and G.729AB Speech Vocoder which perform well in the presence of random bit errors, G.726 Vocoder, G.722.2 (AMR-WB) Vocoder and other similar products.
Toronto, Canada - July 31st, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its G.711 Vocoder for telephone networks. It provides a compression /decompression (companding) algorithm to deliver precision transmissions of encoded speech signals sampled at the rate of 8 kHz in conformance with the ITU-T G.711 standard.
This G.711 vocoder operates at 64 kbps. It includes independent user-callable functions that perform all of the ¦Ì-law and A-law encoding and decoding operations. It uses pulse code modulation (PCM) to compress, decompress, encode, and decode analog speech, which can then be transmitted and received as binary data. Two forms of companding standards, the µ-law and the A-law, are specified. G.711 ¦Ì-law compresses frames of 14-bit linear PCM samples into frames of 8-bit logarithmic PCM code words and G.711 A-law compresses 13-bit linear PCM samples into 8-bit logarithmic PCM code words.
This G.711 vocoder belongs to GAO's family of Speech Vocoders. This line of products also includes G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems, G.726 Vocoder which is used in numerous applications such as speech transmission over digital networks, video conferencing, multimedia, and ISDN communications, G.722 Vocoder and GSM-AMR (AMR-NB) Vocoder which is used mainly in 3rd generation mobile telephony devices to compress toll-quality speech at 8000 samples/second.
Toronto, Canada - July 21st, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its T.38 Fax Relay Software. It allows the transfer of facsimile documents in real-time between two standard Group 3 facsimile terminals over the Internet or other networks using IP protocols.
This T.38 fax relay software is fully compliant with ITU-T T.38 fax relay specification and supports V.17, V.29, V.27ter, V.21ch2 standards. When integrated and tested with fax data modems, it provides operating data rates of up to 14.4 kbps. It also offers re-entrant implementation which is optimized for multi-channel support on a single DSP and a "spoofing" function to prevent jitter, delay or lost packets. In addition, this T.38 fax relay software supports UDP and TCP.
This T.38 fax relay software belongs to GAO's family of Fax Software. Other products in the family are V.27, V.17, V.29 and V.34 fax software whose maximum bit rates are 4.8, 14.4, 9.6 and 33.6 kbps. The family also includes T.30/T.30E and T.4 fax modem protocols, and T.38 fax relay protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - July 13th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.42bis data compression software. It enhances the performance of error correcting modems by making better use of an often over-crowded communications channel.
This V.42bis data compression software implements ITU-T V.42bis recommendation. By using a variable length code to represent fixed length characters, the most commonly transmitted characters are compressed and represented by a codeword much smaller than the conventional bit code. The V.42bis data compression modem software protocol increases the throughput by compressing certain types of data. GAO's V.42bis compression software protocol provides codeword sizes from 512 bytes up to 2048 bytes that are selected depending upon the resources available. It can be used with V.42 error correction protocol or as standalone compression software. APIs are accordingly provided. In addition, the system uses a dictionary, which has a hierarchical tree structure, to store frequently occurring character strings, along with a code to represent these character strings.
This V.42bis data compression software belongs to GAO's family of Soft Modems. Other products in the family are V.34 Modem Software which has a maximum bit rate of 33.6 kbps, and V.32 bis/V.32 Modem Software which is designed to process data in 10 ms intervals. The family also includes V.44 Data Compression Software, V.90 modem software and V.42 Error Correction Protocol. The line of products provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - July 6th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its automatic gain control software designed for speech processing applications. This AGC software is an ideal solution for applications requiring consistent audio levels.
This automatic gain control software consists of two parts: voice activity detection and gain control. It boasts wide dynamic range, low data and program memory requirements and selectable depth and envelop of the gain control. It consists of two user-callable functions, AGCinit and AGC. This AGC software adaptively controls the dynamic range of a speech signal without amplifying the noise between words and phrases. It effectively reduces the volume if the signal is strong and raises it when it is weaker. The AGC software is implemented in assembly or C. In addition, it integrates easily with MP3, MPEG, TCP/IP and most popular real-time operating system.
This AGC software belongs to GAO's family of Telephony Software. This line includes a wide variety of telephony modules such as Dual Tone Multi-Frequency (DTMF) Software which is widely used in interactive control applications such as telephone banking, electronic mail systems, and many other menu-driven operations that respond to digits entered from a telephone, Acoustic Echo Cancellation Software (AEC) and MF R1/R2 software. GAO provides a complete package for telephony that includes speech compression modules and telephony modules. The software packages can be used for feature phones, Internet phones, multi-channel computer telephony boards, soft PBXs and Voice over IP.
Toronto, Canada - June 29th, 2011 - GAO Research Inc.(www.GAOResearch.com) has launched its V.90 modem software which implements the V.90 ITU-T recommendation for modems that can connect at data rates of up to 56 kbps. The standard specifies a pair of high-speed modems, one digital and the other analog, which are designed for Internet use.
This V.90 modem software provides a downstream connection speed of up to 56 kbps. It features synchronous data signalling rates in the downstream direction from 28000 to 56000 bps in increments of 8/6 kbps. Most ISPs are digitally connected both to the Internet and to the telephone company's central office (CO). When this is the case, there is a clear digital connection downstream from the ISP's modem to the CO's line card that serves the user and contains a digital to analog converter. It uses V.34 modulation in the upstream direction to avoid quantization noise between the ISP and CO. The V.90 Server Modem is a digital modem with a maximum transmission bit rate of 56 kbps and reception bit rate of 33.6 kbps. The V.90 Client Modem is an analog modem with a maximum bit rate of 56 kbps receive, 33.6 kbps transmit. They software is available for various processors and DSPs.
This V.90 modem software belongs to GAO's family of Soft Modems. Other products in the family are V.34 Modem Software which has a maximum bit rate of 33.6 kbps, and V.32 bis/V.32 Modem Software which is designed to process data in 10 ms intervals. The family also includes V.44 Data Compression Software, V.42bis Data Compression Software and V.42 Error Correction Protocol. The line of products provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - June 23rd, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its T.4 - TIFF conversion software .It enables the conversion between the ITU-T T.4 Recommendation fax file format and the Tagged Image File Format (TIFF).
This T.4 - TIFF conversion software conducts checking of RTC pattern, error correction on T.4 data, and reports the number of scan lines. It supports conversion from T.4 to TIFF as well as from TIFF and T.4. GAO's T.4 - TIFF conversion software supports most tags. It is fully compliant with ITU-T T.4 Recommendation and TIFF Specifications. The TIFF specification recommends 4 types of data compression schemes. In addition, GAO's T.4 - TIFF conversion software supports the CCITT Group 3 One-Dimensional modified Huffman RLE compression method.
This T.4 - TIFF conversion software belongs to GAO's family of Fax Software. Other products in the family are V.27, V.17, V.29 and V.34 fax software whose maximum bit rates are 4.8, 14.4, 9.6 and 33.6 kbps. The family also includes T.30/T.30E and T.4 fax modem protocols, and T.38 fax relay protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - June 15th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.21 Channel 2 Fax Software. It can be integrated with data modems, telephony, speech compression, and fax relay solutions for use in various telecommunications applications.
V.21 Channel 2 fax software implements channel two of the ITU-T V.21 recommendation and provides a 300 bits per second duplex modem standard for use in the general switched telephone network. The ITU-T V.21 Recommendation states that Frequency Shift Modulation (FSM) should be used resulting in a modulation rate being equal to the data signaling rate. The nominal mean frequency for channel 2 is 1750 Hz. Channel 2 shall be used for transmission of check signals and service signals from the called station to the call-originating station, regardless of the direction in which the data are transmitted.
V.21 Channel 2 fax software belongs to GAO's family of Fax Software. This line includes a wide variety of products such as V.17, V.29 and V.34 fax software whose maximum bit rates are 14.4, 9.6 and 33.6 kbps respectively. The family also includes T.30/T.30E and T.4 fax modem protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - June 9th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.27ter fax modem software. It implements the ITU-T V.27ter fax recommendation which incorporates a modem operating at either 4800 bps or 2400 bps. It is commonly used in the general switched telephone network. This fax modem software can also be integrated with other data modems; telephony, speech compression, and fax relay solutions for use in various applications such as communications and telecom.
This fax modem software consists of transmitting functions and receiving functions which are called to transmit and receive bits in groups of 2 or 3 (referred to as symbols) at a rate of 1200 or 1600 symbols per second respectively. It is highly optimized in C and multi-channel ready. It uses the Group 3 facsimile (G3 fax) modulation scheme for fax image transfer. It also features optional backward channel at modulation rates of up to 75 symbols per second. In addition, this fax software can operate within a multi-tasking environment or as a stand-alone task and is optimized for fixed-point arithmetic.
This V.27ter fax software belongs to GAO's family of Fax Software. Other products in the family are V.17, V.29 and V.34 fax software whose maximum bit rates are 14.4, 9.6 and 33.6 kbps. The family also includes T.30/T.30E and T.4 fax modem protocols. The family provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - June 6th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.44 data compression software which consists of both an encoder and decoder. It is ideal for packet switched networks such as the Internet.
This V.44 data compression software is the newest data compression software ratified by the ITU-T and is improvement on the existing V.42bis standard. It uses a new string-matching algorithm for a higher degree of data compression and thus increases upload and download speeds. Depending on the data type, the compression ratios of 6:1 are attainable with V.44.
This V.44 data compression software belongs to GAO's family of Soft Modems. Other products in the family are V.34 Modem Software which has a maximum bit rate of 33.6 kbps, and V.32 bis/V.32 Modem Software which is designed to process data in 10 ms intervals. The family also includes V.92 Modem Software, V.42bis Data Compression Software and V.42 Error Correction Protocol. The line of products provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - May 16th, 2011 - GAO Research Inc.(www.GAOResearch.com) is offering its V.92 Modem Software which employs pulse code modulation (PCM) in the upstream direction and provides a data rate of up to 48 kbps, which proves most useful in applications that involve large data transfers from user to ISP such as VoIP.
This V.92 modem software provides a downstream rate of up to 56 kbps and a quicker modem connection time which is achieved through faster handshaking. The connection time of V.92 modem software is up to 50% quicker than V.90 for buffered connections. The V.92 Server Modem is a digital modem with a maximum transmission bit rate of 56 kbps and reception bit rate of 48 kbps. The V.92 Client Modem is an analog modem with a maximum bit rate of 56 kbps receive, 48 kbps transmit. When online, users have the ability to put the 'Modem on Hold' (MOH) and can receive a phone call without having to disconnect from their Internet session. The MOH does have a time limit of between 0 to 16 minutes which is set entirely at the discretion of the ISP. The software supports DSPs such as TI C5000 & C6000 series, ARM processors and ADI DSPs and OS such as Windows, VxWorks, and Linux.
This V.92 modem software belongs to GAO's family of Soft Modems. Other products in the family are V.34 Modem Software which has a maximum bit rate of 33.6 kbps, and V.32 bis/V.32 Modem Software which is designed to process data in 10 ms intervals. The family also includes V.44 Data Compression Software, V.42bis Data Compression Software and V.42 Error Correction Protocol. The line of products provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
Toronto, Canada - March 22nd, 2011 - GAO Research Inc.(www.GAOResearch.com) a leading provider of embedded communication software, announced today that it has licensed its embedded fax monitoring software solution to KYLINK Communications Corp., the largest PABX developer and manufacturer in Taiwan.
In situations when network operators must provide lawful interception information to governments and authorities upon their requests, GAO's fax monitoring software can serve the purpose by decoding the standard and/or non-standard faxes for both real time and recorded sessions. KYLINK is undertaking a government project to implement the fax monitoring feature in one of its products.
"Our optimized fax monitoring software supports 2-wire communication decoding. It also supports full and half 4-wire modes, automatic and manual operation modes. It's able to decode V.34 and all fall back fax speeds with a debugging message ON/OFF switch" said Dr. Frank Gao, president of GAO Research Inc. "This has allowed KYLINK to add this function on its existing platform without adding additional hardware. Our embedded communication subsystems allow for functional upgrades through software, which ensure quick design turnaround and performance improvements."
"For important recordings with insufficient signal quality and data, the manual operation mode of GAO's fax monitoring software may be able to recover some or all of the relevant data. This is an extremely important feature to us." said Tom Sheen, Chief Technology Officer at KYLINK. "We selected GAO as our provider because of their experience, their expertise in embedded software and timely support. We are very happy with the level of optimization and the software performance."
About KYLINK Communications Corp.
KYLINK Communications Corp. was established in 1976. It's the largest PABX developer and manufacturer in Taiwan. Its main products include PBX, IP PBX , GPS vehicle tracking system, FHSS radio system, DSSS radio system, digital tactical PBX, VoIP gateway, military and police wireless communication systems, DECT communication systems, and other customized design communication systems.
About GAO Research Inc.
GAO Research Inc. is the market-leader in embedded communication software products for DSP & Microprocessor environments, and one of the fastest growing companies in Canada. GAO's embedded communications modules are used by telecommunications, semiconductor, and electronics manufacturers worldwide. GAO offers its VoIP & FoIP modules, V.92 & V.90 with all fallback soft-modems, Super G3 & G3 fax software and G.7xx speech codecs on the broadest range of DSPs and microprocessors. GAO's customers include Motorola, Lucent, Alcatel, Qualcomm, Philips, Agilent, OKI, Samsung, Siemens, Infineon, LG Electronics, Toshiba and other global customers.
Toronto, Canada - March 18th, 2011 - GAO Research Inc.(www.GAOResearch.com) has released a new revision of its Acoustic Echo Cancellation (AEC) software, which is fully compliant with the ITU G.167 standard. The acoustic echo canceller eliminates acoustical echoes for of hands-free speaker phones. It runs on most commercially available DSPs/microprocessors and under popular real time operating systems.
This AEC software boasts high-performance full duplex operation, robust double-talk detection, high signal to noise ratio and Automatic Gain Control. The software is implemented in assembly or C and has user-callable functions. It can be easily integrated with applications in standard or cell phones, teleconferencing systems and hands-free car phone products. The AEC software works efficiently even requiring little data memory, program memory and computational requirements.
Toronto, Canada - March 14th, 2011 - GAO Research Inc.(www.GAOResearch.com) has released its enhanced T.38 fax relay software which is fully compliant with ITU-T T.38 fax relay specification while supporting V.34, V.17, V.29, V.27ter, and V.21ch2 standards. This T.38 fax relay software solution can operate within a multi-tasking environment and is optimized for fixed-point arithmetic. It operates on commonly used processors such as TI C5000 & C6000 series DSPs, ARM processors and ADI DSPs and under many OSs available in the market.
This fax relay over IP software allows the transfer of facsimile documents in real-time between two fax terminals over the Internet or other networks by using IP protocols. It has been integrated and tested with fax data pumps that support data rates up to 33.6 kbps and it works well with transport layer protocols such as UDP and TCP. This fax relay over IP software also features re-entrant implementation optimized for multi-channel support on a single DSP. A "spoofing" function is included to prevent jitter, delay or lost packets.
Toronto, Canada - March 7th, 2011 - GAO Research Inc.(www.GAOResearch.com) has announced the release of its updated G.722.2 (AMR-WB) vocoder compliant with the ITU-T G.722.2 standard. The software is mainly used for wide-band audio and speech compression. This vocoder uses an Adaptive Multi-Rate Wide-Band (AMR-WB) codec and has passed all ITU-T test vectors. It is available for various applications including Wi-Fi phones VoWLAN, Wireless GPRS EDGE systems, personal communications, audio/video conferencing and wideband IP telephony.
This G.722.2 vocoder provides both full and half duplex modes of operation and operates at rates of 6.6 kb/s to 23.85 kb/s. By utilizing a wide-band of 50 Hz to 7 kHz, GAO's G.722.2 algorithm provides higher-than-toll quality speech. Both the IP network and the 3G network use the same codec which provides seamless interoperability.
Toronto, Canada - March 3rd, 2011 - GAO Research Inc.(www.GAOResearch.com) recommends its V.32bis/V.32 Modem Software. This software provides full duplex mode of operation at data signaling rates of up to 14400 bps for use on the general switched telephone network and on leased point-to-point 2 wire telephone-type circuits. The V.32bis/V.32 modem is designed to process data in 10 ms intervals and can be adapted for a variety of sampling rates such as 9600 Hz or 7200 Hz.
This V.32bis/V.32 modem software provides channel separation using echo cancellation techniques. QAM is used as the modulation scheme providing synchronous line transmission at 2400 baud. Its frequency carrier operates at 1800Hz with V.2 transmitted power level. The V.32bis/V.32 modem software provides exchange of rate sequences during start-up to establish the data-rate, coding and any other special facilities. The V.32bis trellis coding rates are from 7200 bps to 14000 bps; for V.32, two alternative modulation techniques are used for a signaling rate of 960 0bps. One uses 16 carrier states and one uses trellis coding with 32 carrier states. In addition, the software is available for commonly used processors such as TI C5000 & C6000 series DSPs, ARM processors and ADI DSPs and operates under such operating systems as Windows, VxWorks, and Linux.
Toronto, Canada - February 28th, 2011 - GAO Research Inc.(www.GAOResearch.com) has released an updated to its T.30 series of fax control protocol software including T.30 software and T.30E. T.30 software implementing ITU-T T.30 recommendation is procedure for document facsimile transmission in general switched telephone networks. It is targeted for fax applications as a fax handshaking protocol and establishes and manages communications between two fax modems. There are five phases of operation covering call set up, pre message procedure (selecting the communication mode), message transmission (including phasing and synchronization), post message procedure and call release. T.30E software implements the procedure for Group 3 (G3 fax) document fax transmission of continuous-tone color images. T.30E enables the efficient transmission of high quality, full color and gray-scale images over general switched telephone networks and other networks.
The embedded fax software has been integrated and tested with fax data pumps that provide interfaces to PCM data. The fax software is compatible with commonly used processors such as TI C5000 and C6000 series DSPs, ARM processors and ADI DSPs and operates under such operating systems as Windows, VxWorks, and Linux.
Toronto, Canada - January 12, 2011 - GAO Research Inc.(www.GAOResearch.com) a leading provider of embedded telecommunication software, and TeleSoft International Inc.(www.telesoft-intl.com) a premier developer and supplier of telecom and datacom protocol stacks jointly introduce GT-T38, an all-in-one SIP-based T.38 Fax over IP embedded software solution. The GT-T38 enables an end-to-end T.38 fax session over the SIP/SDP protocol, capable of powering T.38 end-points, gateways, and relays. The all-inclusive software solution includes T.38 Real-time Internet Fax Processing, T.30 Fax Control Protocol, T.4/T.6 and TIFF image processing, complete with SIP/SDP protocol with T.38 Annex D extensions, and RTP.
The GT-T38 is a fully optimized, integrated software solution between GAO's field proven T.38 embedded FoIP software and TeleSoft's proven CompactSIP protocol stack. GAO's T.38 interfaces with TeleSoft's SDP protocol to initiate a T.38 fax session using SIP + SDP according to T.38 Annex D. TeleSoft's SIP + SDP stack manages the IP fax session while GAO's T.38 handles all fax data and image processing. This complete SIP T.38 solution allows rapid deployment of fax over IP gateways, relays, and Internet aware fax devices by manufacturers, greatly reducing their R&D effort and time to market while minimizing technical risk.
"By integrating renowned and field-proven technologies from both companies, GAO and TeleSoft are able to offer the industry the best-of-breed, most complete embedded fax over IP software solution available," said Dr. Frank Gao, president of GAO Research Inc. "We continue to see growth in the fax over IP market, and we strive to help developers and manufacturers reduce their time to market by using our complete, off-the-shelf ready solution."
"As the FoIP market accelerates, developers and manufacturers are realizing that two of the most important factors determining success are fax quality, transmission efficiency and time to market," said Charlie Crowe, President of TeleSoft International. "GAO Research's T.38 Fax Relay software combined with TeleSoft's CompactSIP software set the standard in providing the best quality integrated FoIP solution and we are delighted to be working with them."
The GT-T38 software provides the following features:
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) has announced a new release of its V.34 fax modem software which provides adaptive signalling through line probing by adjusting to channel quality and capacity. It is the standard for fax modems of up to 33,600bps.
This high performance V.34 fax modem software operates over twisted pair, point-to-point circuits and on dial-up or leased circuits. One of the most significant characters of the software is its use of increased bit rates to utilize maximum bandwidth permitted by the channel. Unlike lower speed modem standards where nominal bandwidth was set using a fixed carrier frequency, both the bandwidth and carrier frequencies are adaptive in V.34. The V.34 fax modem supports data signalling rates from 2.4kbps to 33.6kbps. It incorporates a higher level of optional capabilities, intelligence, and adaptability than the lower speed V.series modems to make the best use of available conditions. Trellis coding and shell mapping provide this modem with a robust design for heavily impaired channels.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) has announced the availability of its V.22bis & V.22 modem software, which implements the ITU-T standards for 1200bps and 2400bps full-duplex data communication on the GSTN and on point-to-point two-wire leased line circuits. It uses minimal memory and MIPS and doesn't require a high quality, high cost DDA or Codec. The modem software is deployable on processors such as TI C5000 and C6000 DSPs, ARM processors as well as many other DSPs and microprocessors. It runs under all major RTOS including Windows, Linux, ITRON, VxWorks and pSOS.
The software is rigorously tested for standards compliance using TAS, Consultronics, Rochelle, Advent and Telegra equipment under various channel models according to the relevant ITU or TIA, EIA, BellCore, and Mitel standards. It has also been tested against various impairment combinations using TAS Telephone Network Emulator. The softmodemsuse frequency division for channel separation and each channel is phase shift modulated. A symbol rate of 600 carries 2bits per symbol at a rate of 1200bps for V.22. For V.22bis, each channel is quadrature amplitude modulated (QAM) to carry 4bits per symbol at 600 symbols per second at a rate of 2400bps. In addition, carrier frequencies are 1200Hz and 2400Hz respectively for the low and high channels.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) recommends its high performance G.726 vocoder which was introduced to replace both G.721 ADPCM at 32kbit/s and G.723 ADPCM for 24 and 40kbit/s. It is commonly used in applications such as speech transmission over digital networks, video conferencing, multimedia and ISDN communications.
This vocoder, model G.726, adheres to the ITU-T standard. It encodes 13 or 14-bit PCM samples or 8-bit, A-law or ¦Ì-law encoded data into 2, 3, 4, or 5-bit code words. All GAO Research¡¯s speech software have passed the test vectors specified by the ITU. GAO also follows stringent quality control procedures, which is reflected in its well structured code, detailed design documentation, and well-defined design and test plans. This ensures ease of integration, easy maintenance and a smooth upgrade path for further generation customer products.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) recommends its latest release of its ITU-T G.723.1 compliant vocoder which performs compression and decompression of 8kHz speech signals. It encodes 16-bit PCM samples into 16-bit code-words yielding 10 or 12 code-words per 240 sample frames for the 5.3Kbps and 6.3Kbps channels respectively, as well as speech or other audio signals. The vocoder has a switchable transmission rate over 5.3Kbps or 6.3Kbps channels providing 4kHz of quality speech bandwidth. The higher bit rate has greater quality; the lower bit rate gives good quality and provides system designers with additional flexibility.
The ITU standard specifies the coded representation that is used for compressing signal components for multimedia services at a very low bit rate as a part of the overall H.324 family of standards. The excitation signals for the high rate coder is Multipulse Maximum Likelihood Quantization (MP-MLQ) and for the low rate coder is Algebraic-Code-Excited Linear-Prediction (ACELP). This coder was optimized to output high quality speech at the above rates with simple operations. Voice activity detection (VAD) and comfort noise generation (CNG), which are specified in Annex A, are included in this version. It is commonly used for applications such as video phones, audio/video conferencing and media gateways.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) is offering its V.27ter fax modem software which is commonly used in general switched telephone networks. This fax modem software can also be integrated with other GAO data modems, telephony, speech compression, and fax relay solutions for use in various applications.
This V.27ter fax modem software is written in highly optimized C channel and is multi-channel ready. It implements the ITU-T V.27ter recommendation and uses the Group 3 facsimile (G3 fax) modulation scheme for fax image transfer at the rate of 4800bps and 2400bps. This software can operate in a multi-tasking environment and is optimized for fixed-point arithmetic. It consists of transmitting and receiving functions which transmit and receive bits in groups of 2 or 3 at a rate of 1200 or 1600 symbols per second respectively. Additionally, optional backward channel modulation rate is up to 75 symbols per second.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) recommends its V.17 Fax Modem software, which implements the ITU-T V.17 recommendation for a two-wire modem for facsimile applications with data rates up to 14,400bps. QAM is used as the modulation scheme providing synchronous line transmission at 2400 baud.
This V.17 soft fax modem solution operates within a multi-tasking environment or as a stand-alone application and is optimized for fixed-point arithmetic. It features half-duplex mode of operation supporting V.24 interchange circuits, and its frequency carrier operates at 1800Hz with V.2 transmitted power level. The V.17 fax software provides exchange of rate sequences during start-up to establish the data-rate, coding, and any other special facilities. Its trellis coding rates are from 7200 to 14000bps. The embedded fax software is compatible with commonly used processors such as TI C5000 and C6000 series DSPs, ARM processors and ADI DSPs and operates under such operating systems as Windows, VxWorks, and Linux.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) has announced a new release of its V.34 fax modem software, which provides adaptive signalling through line probing by adjusting to channel quality and capacity. It is the standard for fax modems of up to 33,600bps.
This high performance V.34 fax modem software operates over twisted pair, point-to-point circuits and on dial-up or leased circuits. One of the most significant characters of the software is its use of increased bit rates to utilize maximum bandwidth permitted by the channel. Unlike lower speed modem standards where nominal bandwidth was set using a fixed carrier frequency, both the bandwidth and carrier frequencies are adaptive in V.34. The V.34 fax modem supports data signalling rates from 2.4kbps to 33.6kbps. It incorporates a higher level of optional capabilities, intelligence, and adaptability than the lower speed V.series modems to make the best use of available conditions. Trellis coding and shell mapping provide this modem with a robust design for heavily impaired channels.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) recommends its latest release of its ITU-T G.723.1 compliant vocoder which performs compression and decompression of 8kHz speech signals. It encodes 16-bit PCM samples into 16-bit code-words yielding 10 or 12 code-words per 240 sample frames for the 5.3Kbps and 6.3Kbps channels respectively, as well as speech or other audio signals. The vocoder has a switchable transmission rate over 5.3Kbps or 6.3Kbps channels providing 4kHz of quality speech bandwidth. The higher bit rate has greater quality; the lower bit rate gives good quality and provides system designers with additional flexibility.
The ITU standard specifies the coded representation that is used for compressing signal components for multimedia services at a very low bit rate as a part of the overall H.324 family of standards. The excitation signals for the high rate coder is Multipulse Maximum Likelihood Quantization (MP-MLQ) and for the low rate coder is Algebraic-Code-Excited Linear-Prediction (ACELP). This coder was optimized to output high quality speech at the above rates with simple operations. Voice activity detection (VAD) and comfort noise generation (CNG), which are specified in Annex A, are included in this version. It is commonly used for applications such as video phones, audio/video conferencing and media gateways.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) has released its enhanced G.729 vocoders which provide toll-quality speech with only moderate processing requirements and delay times. They perform well in the presence of random bit errors. These speech vocoders, G.729 and G.729A/B, are commonly used in visual telephony, wireless communications, and digital satellite communication systems.
Each of the vocoders offer easy integration into other systems, minimal software maintenance and a smooth upgrade path for next-generation customer products. They compress 8kHz CODEC or linear audio data to 8kbps. These vocoders operate on 10ms frames with short algorithmic delays and deliver toll quality speech. The implementation of these vocoders pass all ITU-T test vectors.
Toronto, Canada - GAO Research Inc.(www.GAOResearch.com) recommends its high performance G.726 vocoder which was introduced to replace both G.721 ADPCM at 32kbit/s and G.723 ADPCM for 24 and 40kbit/s. It is commonly used in applications such as speech transmission over digital networks, video conferencing, multimedia and ISDN communications.
This vocoder, model G.726, adheres to the ITU-T standard. It encodes 13 or 14-bit PCM samples or 8-bit, A-law or ¦Ì-law encoded data into 2, 3, 4, or 5-bit code words. All GAO Research¡¯s speech software have passed the test vectors specified by the ITU. GAO also follows stringent quality control procedures, which is reflected in its well structured code, detailed design documentation, and well-defined design and test plans. This ensures ease of integration, easy maintenance and a smooth upgrade path for further generation customer products.
Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) recommends its G.728 vocoder offering approximately 4kHz speech bandwidth. It implements the low delay code-excited linear prediction (LD-CELP) speech compression technique specified in the ITU-T standard. This software is well-suited for embedded applications in digital circuit multiplication equipment, videoconferencing, digital telephony, and multimedia products. The software encodes 5 sample frames of 16-bit linear PCM data into 10-bit code words and employs backward-adaptive linear predictive coding analysis to achieve a low transcoding delay. It uses backward adaptation of predictors and gains to achieve an algorithmic delay of only 0.625ms. The ITU-T G.728 standard specifies the encoding of 8kHz sampled speech signals for transmission over a 16kbps channel. The vocoder runs on most commercially available DSPs/microprocessors and under most popular real time operating systems.
Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) is offering its Acoustic Echo Cancellation (AEC) software which complies with ITU-T G.167 standard. It can run on most commercially available DSPs/microprocessors and most popular real time operating systems. The software is implemented in assembly or C and has user-callable functions. It can be easily integrated with applications in standard or cell phones, teleconferencing systems, hands-free car phone products or hospital patient care systems. The software features low data memory, program memory and computational requirements. Its robust design delivers consistent results. In addition, it executes double-talk detection, high performance full duplex operation and automatic gain control.
Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) recommends its latest enhanced ITU-T G.723.1 compliant vocoder which performs compression and decompression of 8kHz speech signals. It encodes 16-bit PCM samples into 16-bit code-words yielding 10 or 12 code-words per 240 sample frames for the 5.3Kbps and 6.3Kbps channels respectively. This vocoder also encodes speech or other audio signals in frames using linear predictive analysis-by-synthesis coding. It has switchable transmission rates over 5.3Kbps or 6.3Kbps channels providing 4kHz of quality speech bandwidth. The higher bit rate has greater quality; the lower bit rate gives good quality and provides system designers with additional flexibility.
The ITU-T G.723.1 standard specifies a coded representation that can be used for compressing the speech or other audio signal component of multimedia services at a very low bit rate as part of the overall H.324 family of standards. This coder was optimized to represent high quality speech at the above rates using a limited amount of complexity. The excitation signal for the high rate coder is Multipulse Maximum Likelihood Quantization (MP-MLQ) and for the low rate coder is Algebraic-Code-Excited Linear-Prediction (ACELP). Voice activity detection (VAD) and comfort noise generation (CNG), which are specified in Annex A, are also included in this version. This vocoder is available for applications such as video phones, audio/video conferencing, media gateways.
Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) has rolled out a better performance Acoustic Echo Cancellation (AEC) software. This AEC software complies to ITU-T G.167 standard. It is implemented in assembly or C and has user-callable functions. It supports robust double-talk detection, high performance full duplex operation and automatic gain control. The software features low data memory, program memory and computational requirements. Its robust design delivers consistent results. It can be easily integrated with applications as standard phone or cell phone in hands-free mode, teleconferencing systems, hands-free car phone products, hospital patient care systems, etc. The AEC software can be run on most commercially available DSPs/microprocessors and most popular real time operating systems.
Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) has recently updated its fax modem software supporting commonly used processors such as TI C5000 & C6000 series DSPs, ARM processors and ADI DSPs and OS such as Windows and Linux. It implements the ITU-T V.29 Recommendation, which provides full-duplex data transmission at rates of 9600, 7200, and 4800bps over four-wire leased lines. The soft modem software is also modulation technique used in Group 3 fax for fax data transfer at 9600bps and 7200bps on 2-wire lines. It consists of transmitting functions and receiving functions which are called to transmit/receive bits in groups of 2 or 3 at rates of 1200 or 1600 symbols per second respectively.
GAO Research's V.29 modem data pump software operates in either half or full duplex modes and has a "quick connect" feature. It uses amplitude and phase modulation for synchronous transmission. The V.29 soft fax modem solution operates within a multi-tasking environment or as a stand-alone task and is optimized for fixed-point arithmetic. It can be integrated with other data modems, telephony, speech compression, and fax relay solutions for use in various applications.
All GAO's software are subject to the most stringent quality control procedures, which is reflected in its well structured code, detailed design documentation, and well-defined design and test plans. This ensures ease of integration into the user's system, easy maintenance, and a smooth upgrade path for next-generation products.
Toronto, Canada –– GAO Research Inc. (www.gaoresearch.com), a leading provider of embedded communication software, announced today that it has licensed its embedded modem software solution to CEIVA Logic Inc. (www.ceiva.com) for use in its patented connected digital photo frame.
In order to provide connectivity for the device's automatic online photo updates, the suite of GAO modules chosen by CEIVA includes ITU-T standards V.34 compliant softmodem, V.42 error correction software, as well as various telephony modules and Linux drivers. The software allows the digital photo frame to be plugged into an existing phone line and silently dial a local number each night to pick up or send new photos, without interruption to one's phone service, and without charges to the line.
"This is a typical scenario we encounter with many of our customers," said Dr. Frank Gao, president of GAO Research Inc. “By replacing the modem chipset in their design with GAO's highly optimized software solution, CEIVA is able to achieve significant cost savings."
Jim Sepe, Chief Technology Officer, at CEIVA logic said, "When CEIVA decided to upgrade our connected digital photo frames and switch from a hardware to a software based solution, we needed to ensure we retained functionality and remained highly competitive. Our choice of GAO’s software modem solution allowed us to do both." Sepe also commented that, “CEIVA is very pleased with the results. The optimization and performance of GAO software far exceeded our expectations and their after sales support is excellent.?/p>
GAO’s embedded soft-modem and fax packages include a full range of ITU-T compliant modem and fax data pumps and protocols. Modem data pumps include V.92, V.90, V.34, V.32bis/V.32, V.22bis/V.22, V.21, and other standards. Fax data pumps include V.34, V.17, V.29, V.27ter, and V.21 ch.2. GAO’s embedded modem and fax software are fully optimized to run on DSPs and microprocessor platforms including Texas Instruments C5000 and C6000 series, Analog Devices ADSP 218x and Blackfin, ARM7, ARM9/E, and Pentium among others.
About GAO Research Inc.
GAO Research Inc., www.gaoresearch.com, is the market-leader in embedded communication software products for DSP & Microprocessor environments, and one of the fastest growing companies in Canada. GAO’s embedded communications modules are used by telecommunications, semiconductor, and electronics manufacturers worldwide. GAO offers its VoIP & FoIP modules, V.92 & V.90 with all fallback soft-modems, Super G3 & G3 fax software and G.7xx speech codecs on the broadest range of DSPs and microprocessors. GAO’s customers include CEIVA, Motorola, Samsung, Alcatel, Philips, Telular, Telcordia, OKI, Marconi, Agilent, Siemens, Infineon, AudioCodes, ABB, LG Electronics, Toshiba and other global customers.
About CEIVA Logic, Inc.:
CEIVA Logic, Inc., www.ceiva.com, is the inventor of the digital photo frame and the provider of the world’s first and only connected Digital Photo Frames? CEIVA enables families and friends to display endless slideshows from camera memory cards via the frames built-in card reader and automatically receive photos sent by camera phone or through an online CEIVA account. Offering world-class personalized customer care, CEIVA Digital Photo Frames and the CEIVA PicturePlan?service is the only digital photo solution to allow effortless display, secure storage and sharing of digital photos. CEIVA products are available at ceiva.com and at select retailers nationwide.
Toronto, Canada ?GAO Research Inc., (www.gaoresearch.com) a leading provider of embedded communication software, is supplying its suite of modem, fax, and telephony software to power the next generation of Telular Corporation’s (www.telular.com) Fixed Cellular Terminals (FCTs). Telular selected GAO’s modem and fax software, including V.90 soft modem technology, which provides downstream speeds of up to 56 kbps, and V.17 fax with a bit-rate of up to 14.4 kbps.
Telular’s wireless terminals are further enabled through GAO’s caller-ID, DTMF, call progress, and G.168 line echo cancellation software. By replacing their chipset-based fax and data modems with GAO’s DSP-based software solutions, Telular is able to achieve significant cost savings and reduce product PCB size, while facilitating easy upgrades for their new Fixed Wireless Terminal products.
Telular’s Fixed Cellular Terminals enable wireless connectivity for standard telephones, fax machines, and computer equipment across a wide range of applications. From mobile users not adequately served by cellular handsets to rapid cellular service deployment, Fixed Cellular Terminals from Telular provide voice, fax, and data transmission with superior reception using existing cellular network technologies
"Our optimized modem software uses minimal footprint, which reserves DSP resources for other memory intensive applications "said Dr. Frank Gao, president of GAO Research Inc.?This has allowed Telular to drop their original solution that employed a modem chipset, and has now implemented modem functions directly on a Texas Instruments C5502 DSP. Our embedded communication subsystems allow for functional upgrades through software, which ensure quick design turnaround and performance improvements, while achieving a reduction in volume manufacturing costs."
"After careful consideration we selected GAO Research as our provider because of their experience, their leading product portfolio in the embedded communication software market, and their strong reputation for quality and support," said Daniel Giacopelli, Executive Vice President and Chief Technology Officer at Telular Corporation. "Not only were we able to reduce the overall cost and PCB size by replacing the fax and modem hardware with GAO’s software, but by utilizing GAO’s solutions we had enough remaining DSP resources for GAO to port the remaining control functions from the existing host processor to the more economical DSP. This eliminates the need for a host processor altogether and further reduces hardware costs and circuit size all which will prove beneficial to our customers. The level of optimization and performance of GAO software has far exceeded our expectations."
GAO’s embedded soft-modem and fax packages includes a full range of ITU-T compliant modem and fax data pumps and protocols. Modem data pumps include V.92, V.90, V.34, V.32bis/V.32, V.22bis/V.22, V.21, and other standards. Fax data pumps include V.17, V.29, V.27ter, V.21 ch.2. GAO’s embedded modem and fax software are fully optimized to run on DSPs and microprocessor platforms including Texas Instruments C5000 and C6000 series, Analog Devices ADSP 218x and Blackfin, ARM7, ARM9 , and Intel XScale and Pentium among others.
About GAO Research Inc.
GAO Research Inc. is the market-leader in embedded communication software products for DSP & Microprocessor environments, and one of the fastest growing companies in Canada. GAO ’s embedded communications modules are used by telecommunications, semiconductor, and electronics manufacturers worldwide. GAO offers its VoIP & FoIP modules, V.92 & V.90 with all fallback soft-modems, Super G3 & G3 fax software and G.7xx speech codecs on the broadest range of DSPs and microprocessors. GAO’s customers include Motorola, Lucent, Alcatel, Qualcomm, Philips, Terayon, Telcordia, OKI, Marconi, Siemens, Infineon, Mitsubishi, Intercom, LG Electronics, Toshiba and other global customers.
About Telular Corporation:
Telular Corporation, the global leader in the cellular fixed wireless telecommunications industry, designs, develops, manufactures and markets Cellular Fixed Wireless Terminal (FWT) products that enable a standard telephone, fax, computer modem or security alarm system to operate wirelessly over the cellular network for either primary or back-up communications. Based on its proprietary RJ-11-to-Cellular interface technologies, Telular provides the capability to bridge landline telephone equipment with cellular-type transceivers used in wireless communication networks in the cellular and PCS bands. Telular Corporation has been a publicly held company since 1994. Its stock is traded on the NASDAQ exchange under the symbol "WRLS."
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Toronto, Canada ?GAO Research Inc.,(www.gaoresearch.com) a leading provider of embedded communication software, has supplied its V.92 modem software to power a new, state-of-the-art video phone as part of a large-scale migration towards Voice over IP by a leading Telecommunications Service Provider (currently under NDA) operating in over 15 countries. Connecting at speeds of up to 56 kbps, GAO's V.92 modem provides the high-speed connection required for simultaneous real-time video and speech, without the use of expensive broadband networks. The collaborative integration efforts between GAO Research Inc., and GAO's embedded design service partners, resulted in unprecedented real-time video and speech quality over PSTN. The cutting-edge videophone is now slated for wide deployment in many parts of the world. The phone is available as two designs: One with TI's C64xx DSP core (including DM64x with video support) as well as another version for Intel's Xscale. Both versions include GAO's v.92 softmodem supported on the TI and Intel architecture.
"We are extremely pleased to have our modem software integrated into these new video phone designs intended for global deployment,?said Dr. Frank Gao, President of GAO Research Inc. “The lack of a broadband network is still a bottleneck for the evolution of multimedia telecommunications to the general public in many countries. Our high performance V.92 modem takes advantage of ubiquitous and affordable POTS lines. Modem software and optimization has always been at the core of our research and development, and this expertise came through for our Telecom Service Provider customer during this project. The performance of this video phone has surpassed the expectations of many of its end-users."
GAO's softmodems have driven profitability and significantly lowered volume manufacturing costs for its OEM customers without compromising on performance. GAO makes this possible through its long standing DSP and microprocessor code optimization expertise leading to efficient, small-footprint data pump code.
The ITU-T V.92 standard employs pulse code modulation (PCM) in the upstream direction, supplying a data rate of up to 48 kbps; a significant improvement over V.90. The earlier V.90 standard uses the same upstream modulation as V.34 for a limited speed of 33.6 kbps. This improvement proves most useful in applications that involve large data transfers from user to ISP, such as VoIP. GAO's V.92 soft modem features include Modem-on-Hold, and quicker connection time over previous standards, achieved through faster handshaking. Connection time for V.92 is up to 50% quicker than V.90 for buffered connections.
GAO's V.92 Soft Modem Features:
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Toronto, Canada ?GAO Research Inc., (www.gaoresearch.com) a leading provider of embedded communication software, released an online demo of its G.729AB codec, available at http://www.gaoresearch.com/products/speechsoftware/other/g729.php. This real-time demo allows customers to sample the high fidelity of GAO's G.729AB algorithm. Users may supply their own WAV file, and can adjust simulation parameters such as network jitter and packet loss. GAO's G.729AB vocoder is off-the-shelf available and fully optimized for popular platforms that support Microsoft's WinCE and WinCE.Net such as ARM9, Intel's Xscale and Pentium processors and TI's OMAP among others.
“Today's VoIP devices all support the ITU-T G.729AB codec, making it the most sought after speech processing algorithm by our customers.?said Dr. Frank Gao, president of GAO Research Inc. “Customers always demand to sample the quality of a voice codec before they make the purchase. We want to present a convenient method for our customers to accurately evaluate the fidelity of our codec under simulated network conditions. Customers can expect very similar results when our algorithm is implemented on their system.?/p>
GAO's G.729AB codec is based on the Code Excited Linear Prediction Model (CELP) and Conjugate-Structure Algebraic CELP (CS-ACELP). Some applications for GAO's G.729AB vocoder include visual telephony, wireless communications, and digital satellite communication systems. The G.729A ITU-T standard for voice coding compresses 8 kHz linear audio signals and encodes them for transmission at 8 Kbps with reduced complexity compared to G.729. The ITU-T G.729B & G.729AB standard is a silence compression scheme for G.729 & G.729A, optimized for terminals conforming to Recommendation V.70.
GAO's G.729AB Voice Codec Features:
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Toronto, Canada ?GAO Research Inc., (www.gaoresearch.com) a leading provider of embedded communication software, upgrades its T.38 Fax
Relay software. The new version will not only support Group 3 fax, it will also support V.34 Super G3 fax. It is optimized for multi-channel support on a single DSP. In addition to TCP and UDP,
support for RTP/UDP has been added to the new version, and it also features a new "spoofing" function to prevent jitter, delay or lost packets. These new features permit the implementation of GAO's
T.38 software in a wider range of IP fax products, making GAO's T.38 the most attractive in the embedded communications market.
"One of the fundamental reasons businesses look to implement real-time fax-over-IP is to consolidate their voice, fax, and data traffic onto their existing IP network,?said Dr. Frank Gao, president
of GAO Research Inc. "As communication devices migrate toward the packet based environment, customers will require a fax-over-IP solution to complete their communications infrastructure. GAO's T.38
software offers the complete set of functions required by fax-over-IP systems, which enables our customers to significantly reduce their R&D efforts.?br />
GAO's T.38 fax relay software provides the following functions:
Toronto, Canada - GAO Research Inc., a leading provider of embedded communication software, today announced the launch of its packaged Voice & Fax over IP (VFoIP) embedded software solution. GAO's VFoIP solution includes comprehensive software modules for voice and fax processing, packet data transmission and control, ITU-T H.323, SIP, MGCP, RTP, and RTCP protocol stacks. GAO's VFoIP solution incorporates all aspects of a VFoIP system, offering its customers the advantage of launching new VFoIP products with minimal in-house development work, thus shortening the always critical time to market factor. Products that customers can deploy by using GAO's VFoIP software solution include stand-alone IP phones, VoIP PBXs, VoIP Gateways, and Fax over IP applications.
"As the IP Telephony market continues to prosper, we're seeing a huge demand for voice and fax over IP software," said Dr. Frank Gao, president of GAO Research Inc. "There is an upward trend where, instead of doing in-house research and development, companies are acquiring embedded VoIP software solutions from outside vendors, and then integrating with target hardware platforms to produce their voice and fax over IP products. GAO VFoIP Software Solution offers all the functions required by a voice and fax over IP system, enabling our customers to significantly reduce their integration efforts, time to market, and capital expenditures."GAO's VFoIP Software Solution supports H.323, SIP, MGCP, RTP, RTCP protocols, voice compression using GAO's G.7xx speech codecs, and voice processing software such as call discrimination, echo cancellation, voice activity detection, comfort noise generation, DTMF tone detection and generation, and automatic gain control. Fax over IP capability is also provided using T.38 fax protocol. Packet data transmission and control is achieved with lost packet detection and reconstruction, jitter buffer management and sequencing, and a suite of packet protocols.GAO Research, a Microsoft Windows Embedded Partner and leading supplier of embedded communication software has announced that its V.92 modem software is now available to run under Microsoft's Windows CE. V.92 technology improves on V.90 in three ways: supplies a higher upstream data rate of up to 48 kbps, shortens the connection time by 50%, and has the ability to temporarily put the 'Modem On Hold' (MOH) allowing users to receive a phone call without having to disconnect from their Internet session. Integrating GAO's products with Microsoft's Windows CE .NET elevates the collaborative efforts of both companies to a wide range of offerings for OEMs looking to shorten their time to market and develop their digital and mobile products based on the latest embedded technology.
TORONTO, Canada and SANTA CLARA, California - GAO Research, world leading supplier of embedded communication software, and DSP Group, Inc. (Nasdaq: DSPG), the world leader in the development and licensing of Digital Signal Processor (DSP) cores announced today that Oki Electric Industry Co., Ltd., of Japan has licensed GAO's V.90 (56k) modem software as well as the software to allow fallbacks to all lower speed modems which are designed for use with DSP Group's Teak?DSP Core. Oki is an existing Teak and TeakLite?licensee and GAO has already implemented several algorithms using DSP Group's Teak and TeakLite DSP Cores.
GAO's communications industry expertise has been established through its product line that includes software for voice band modems, broadband DSL modems, fax, fax relay, fax over IP, telephony, voice, voice over IP, and voice over DSL gateways. Developing GAO's products using DSP Group's Teak DSP Core elevates the collaborative efforts of both companies to a range of offerings for OEMs looking to shorten their time to market with DSP-based system-on-a-chip solutions for many of their digital devices.
"After careful consideration, we concluded that the combination of GAO's software modems with DSP Group's Teak processor was the best, most robust solution for our chipset product," says Hiroshi Kume, Senior Manager with Oki's LSI division. "The product has a minimal footprint and requires only a nominal amount of power while remaining superior to, and more adaptable than, a traditional chipset." Oki Electric Industry Co., Ltd. is Japan's first telecommunications manufacturer.
"Both GAO and DSP Group have long recognized the tremendous possibilities in the union of software-based communication solutions and powerful DSPs," says Dr. Frank Gao, CEO of GAO Research. "Currently, our entire suite of modems as well as some of our other software is available for DSP Group's family of cores. We are moving to offer all of our communications products for these DSPs."
"Our collaboration with GAO Research to provide modem solutions to our licensees illustrates the solid business relationships that DSP Group is building throughout the DSP IP market," says Bat-Sheva Ovadia, vice president of marketing and business development for DSP Group's Technology Licensing Division. "The SmartCores series continues to satisfy OEM's demand for powerful, open-architecture DSP IP platforms on which they can create value-added chipset solutions."
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Toronto, Canada: GAO Research Inc., the preeminent embedded communications software provider, has announced that it will release V.92 compliant modem software as well as V.44 data compression software by the begining of the next year. This places GAO as the market forerunner for softmodem based on the two new standards recently ratified by the ITU.
Dr. Frank Gao, internationally known DSP expert and CEO of GAO Research, says, "We are very pleased that our customers will benefit from the early avaliability of these software packages. We have always maintained that software solutions offer a faster and more cost-effective upgrade path than fixed-function chip sets do. Since an upgrade by GAO's customer from a V.90 to a V.92 softmodem will not require customers to make significant hardware design changes if any, it will prove to be an inexpensive and effective means for customers to provide extended functionality in their products."
GAO is currently porting its C-coded versions of V.92 and V.44 to a wide variety of DSPs and microprocessors. Dr. Gao adds, "These C and assembly-coded new products add significantly to our modem, telephony, and integrated products extending the capabilities of our access technologies for Internet appliances, VoIP, residential gateway and remote access server packages."
V.92 improves on V.90 in three ways:
V.44, the new data compression software, improves on the existing V.42bis standard by as much as 100%. Depending on the kind of data, compression ratios of 6:1 are attainable with V.44. Full advantage of both standards is realized when GAO's V.92 softmodem is combined with its V.44 yielding greater throughput. For example, with a V.92 upstream connection speed of 48 kbps and 6:1 data compression the data transfer rate becomes 288 kbps. Due to physical limitations, hardware modems that depend on the use of serial ports are often limited to a maximum transfer rate of 115.2 kbps.
"Interest in our V.92 software has been high," says Uwe Lynen, GAO's Vice President of Business Development "Many of our current customers are already looking to upgrade their softmodem-based products to include the higher speed modem. We are committed to providing them with V.92's new features quickly, which is extremely important in this competitive market." With the addition of V.92 softmodem and V.44 data compression software to GAO's growing portfolio of modem, fax, speech and telephony software, GAO will continue to be the leader in serving its customers' needs by providing complete, embedded telecommunications solutions.
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Toronto, Canada: GAO Research Inc., the world-leading supplier of communications software, has made a significant breakthrough in the huge Chinese information appliance market with the signing of a contract with Beijing Hi-Tech Wealth Electronic Product Company Ltd., the number one PDA manufacturer in China.
Under this deal, GAO is supplying high-speed modem software that runs on the Intel StrongARM processor. Beijing Hi-Tech Wealth plans to use the software for its Personal Digital Assistants (PDA) in China.
"We are pleased that GAO Research has chosen Intel's StrongARM processors as the platform for their PDA software. We see tremendous potential for Intel StrongARM processor in the Chinese market," said Intel's Tom Yemington, Product Marketing Manager, Handheld Computing Division of Intel.
The embedded modem software from GAO enables PDA users to connect to a phone line and browse the Web or transfer data at high speeds to and from the Internet. "The combination of Intel StrongARM processor and GAO softmodem technology offers a cost-effective, real-estate saving, minimal power consumption, and flexible solution which is far more superior than a chipset for PDA devices," said Steve Yu of Beijing Hi-tech Wealth.
Dr. Frank Gao, CEO of GAO Research, feels that the information appliance market is going to grow explosively over the next few years. "Worldwide, more and more people want the functionality of browsing the net while being mobile. At GAO we have the embedded software technology to enable the change, and we are well-positioned to take advantage of the tremendous opportunity this represents."
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Toronto, Canada: GAO Research Inc. is pleased to announce that it is working with STMicroelectronics to port its V.90 software modem to ST's new range of powerful and cost effective ST40 products which incorporate the 32-bit SuperH, SH-4 CPU core. This extends the existing cooperation between GAO and ST for supplying GAO's modem software on ST's micros for consumer and telecom applications.
"This cooperation demonstrates that both companies recognize the enormous potential of software based modem solutions on powerful microprocessors" said Uwe Lynen, Vice President of Business Development at GAO.
Since the standardization of the 56Kbps V.90 modem was completed in the fall of 1998, it has quickly become the ubiquitous high-speed modem standard not only for the PC, but for Set-top box applications, Internet appliances, and anywhere high-speed communication is required. The V.90 software solution from GAO provides for more flexible feature sets and excellent cost/performance.
"Software V.90 Modems are a key part of our system-on-chip strategy and with the processing power offered by the SH-4 CPU core this an ideal product to take advantage of GAO's expertise in optimized application software." said Mark Jones, Marketing Director, CPU Cores at ST.
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GAO Research Inc.'s Software Modem Replaces Chipset in CEIVA's Connected Digital Photo Frame
Softmodem Replaces Chipset in Telular's Fixed Cellular Terminal
Softmodem: More Cost Effective and Beneficial than Modem Chipsets
