V.34

protocol An ITU-T standard modem serial line

protocol using symbol rates of 2400, 2743, 2800, 3000,

@#3200 and 3429 and up to 28800 bits per second.

The official V.34 draft recommendation was titled:

Modem operating at data signalling rates of up to 28 800

bit/s for use on the general switched telephone network and

on leased point-to-point 2-wire telephone-type circuits.

During the lengthy process of approval by ITU-T, many

manufacturers released 28.8 kbps modems described as "V.FAST".

The V.34 recommendation was ratified by ITU-T on 20

September 1994. Rockwell and US Robotics both have seats

on the ITU-T, and have both released chip set/BIOS

combinations that they feel will meet V.34. V.34 modems will

also support V.FC if the manufacturer currently supports

V.FC (e.g. Rockwell). Some (all?) V.34 modems will also

support line probing.

ITU document.

(1998-07-03)