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