Voiceband modem operating standards


Voiceband modem operating standards

Table
Voiceband modem operating standards
ITU-T
standard transmission
rate modulation
method transmission
mode
V.27ter 4.8 kbps PSK half-duplex
V.29 9.6 kbps QAM half-duplex
V.17 14.4 kbps QAM/TCM half-duplex
V.21 300 bps FSK full-duplex
V.22 1.2 kbps PSK full-duplex
V.22bis 2.4 kbps QAM full-duplex
V.32 9.6 kbps QAM/TCM full-duplex
V.32bis 14.4 kbps QAM/TCM full-duplex
V.34 28.8 kbps QAM/TCM full-duplex
V.90 56 kbps
(downstream) PCM full-duplex
33.6 kbps
(upstream) QAM/TCM full-duplex
See as table:

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Universalium. 2010.

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