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MessageSaver User Guide
Data Modulation
Fax Modulation
Carrier Frequencies
ITU-T V.34
Carrier Frequencies
ITU-T V.32bis/V.32
Carrier Frequencies
V.22bis/V.22 or
Bell 212A Standard
(2400 & 1200 bps)
Carrier Frequencies
ITU-T V.23
(1200 bps)
Carrier Frequencies
ITU-T V.21
(0–300 bps)
Carrier Frequencies
Bell 103/113
(0–300 bps)
Fax Carrier
Frequencies
Transmit Level
88
FSK at 300 bps, PSK at 1200 bps, QAM at 2400, 4800, and
9600 bps (non-trellis), QAM with trellis-coded modulation
(TCM) at 9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000,
26,400, 28,800, 31,200, 33,600, and 56,000 bps
V.21 CH2 FSK at 300 bps (half duplex)
V.27ter DPSK at 4800 and 2400 bps
V.29 QAM at 9600 and 7200 bps
V.17TCM at 14400, 12000, 9600, and 7200 bps
1600, 1646, 1680, 1800, 1829, 1867, 1920,
1959, 2000 Hz
1800 Hz
Transmit originate: 1200 Hz
Transmit answer:
2400 Hz
Receive originate:
2400 Hz
Receive answer:
1200 Hz
Transmit originate: 390 Hz mark
450 Hz space
Receive originate:
1300 Hz mark
2100 Hz space
Transmit answer:
1300 Hz mark
2100 Hz space
Receive answer:
390 Hz mark
450 Hz space
Transmit originate: 980 Hz mark
1180 Hz space
Receive originate:
1650 Hz mark
1850 Hz space
Transmit answer:
1650 Hz mark
1850 Hz space
Receive answer:
980 Hz mark
1180 Hz space
Transmit originate: 1270 Hz mark
1070 Hz space
Receive originate:
2225 Hz mark
2025 Hz space
Transmit answer:
2225 Hz mark
2025 Hz space
Receive answer:
1270 Hz mark
1070 Hz space
V.21 Ch2 (half duplex):
1650 Hz mark, 1850 HZ space for transmit
originate
1650 HZ mark, 1850 Hz space for transmit
answer
V.27ter: 1800 Hz originate/answer
V.29 QAM: 1800 Hz originate/answer
V.17 TCM: 1800 Hz originate/answer
-11 dBm (dial-up)
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