V.92 Modem Software (V.92 soft modem)

By employing pulse code modulation (PCM) in the upstream direction, V.92 supplies a data rate of up to 48 Kbps a significant improvement over V.90 that uses the same upstream modulation as V.34 for a maximum speed of 33.6 Kbps. This increase is made possible because the V.92 clock is set by the demodulation process and used in the upstream modulation. This will prove most useful in applications that involve large data transfers from user to ISP: VoIP, for example. The V.92 Server Modem is a digital modem with a maximum bit rate of 56 Kbps transmit, 48 Kbps receive. The V.92 Client Modem is an analog modem with a maximum bit rate of 56 Kbps receive, 48 Kbps transmit.

V.92's downstream rate remains unchanged from V.90 at 56 kbps. Quicker modem connection time is achieved through faster handshaking. The shortened start-up time is accomplished by buffering information on past connections then, when a match is found, handshaking can immediately begin at a previously negotiated rate. Connection time for V.92 will be up to 50% quicker than V.90 for buffered connections. When online, users will have the ability to put the 'Modem On Hold' (MOH) and can receive a phone call without having to disconnect from there Internet session. There will, however, be a time limit of between 0 to 16 minutes, which is set entirely at the discretion of the ISP.

Features of V.92 Modem Software (V.92 soft modem)