... rate: a) V. 34bis, V. 34+, ITU-T V. 34 b) V. 32bis, V. 32, V. 22bis, V. 22 and Bell 212A c) ITU-T V. 23, V. 21 and Bell ... -and-play l Data compression: ITU-T V. 42bis and MNP 5 l Error correction: ITU-T V. 42 and MNP 2, 3, and ... 3 compatible fax machines / modems l ITU-T V. 17, V. 29, V. 27 TER V. 21 channel 2300 l 14400, 9600, 7200, 4800, 2400bps ...