What do the V.32, V.32bis, V.34, and V.90 protocol designations mean?
V.32 A family of 2-wire, duplex modems operating at data signaling rates of up to 9,600 bit/s for use on the general switched telephone network and on leased telephone-type circuits V.32 bis A duplex modem operating at data signaling rates of up to 14,400 bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits V.34 A modem operating at data signaling rates of up to 33,600 bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits V.90 A modem designed for connections which are digital at one end and have only one digital-to-analogue conversion. Download speeds of up to 56,000 bits per second (bit/s) are possible, depending on telephone line conditions, with upload speeds of up to 33,600 bit/s. The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) announced the V.90 56K modem designation in a Feb. 7, 1998, press release, when the techn
