The ITU-T Recommendation for full-duplex (FDX) asynchronous dial-up modems operating over the public switched telephone network (PSTN) at transmission rates up to 28.8 kbps over a 4-kHz analog voice grade channel. See also analog, asynchronous, channel, FDX, PSTN, transmission rate, and voice grade.
V.34 - Computer Definition
The vernacular for V.34bis. See V.34bis.
An ITU standard (1994) for 28,800 bps and (1996) 31,200 and 33,600 bps analog modems using QAM modulation. Before V.34, AT&T's V.32terbo and Rockwell International's V.FC modems came on the market to provide greater speed than the V.32bis 14,400 bps standard. After V.34 was standardized at 28.8 Kbps, subsequent enhancements that raised speeds to 33.6 Kbps were folded back into V.34, and there was no change in number or designation.