|
| TABLE 1
| Pertinent standards for asynchronous transmission over an analog POTS line
|
| V.21
| 300 bps modulation
|
| V.22
| 1200 bps modulation
|
| V.22bis
| 2400 bps modulation
|
| V.32
| 9600 bps modulation
|
| V.32bis
| 14.4 Kbps modulation
|
| V.34
| 28.8 Kbps modulation
|
| V.42
| Error Correction
|
| V.42bis
| Data Compression
|
| V.56bis
| ITU modem testing standard
|
| V.25
| Answer tone generation and echo cancellation
|
| Hayes 2400B
| “AT” command set pseudo standard
|
TSB 37a,
TSB 38
| EIA/TIA Modem testing standards
|
Back
|
|
|
|
|
