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Appendix A AT Commands
63
The +FTH=<mod> command causes the modem to transmit data framed in
the HDLC protocol at the modulation defined as below:
Command Modulation Speed
+FTH=3 V.21 channel 2. 300 bits/s.
+FTH=24 V.27ter. 2400 bits/s.
+FTH=48 V.27ter. 4800 bits/s.
+FTH=72 V.29. 7200 bits/s.
+FTH=96
V.29. 9600 bits/s.
+FTH=73
V.17. 7200 bits/s.
+FTH=74
V.17 (short train). 7200 bits/s.
+FTH=97 V.17. 9600 bits/s.
+FTH=98 V.17 (short train). 9600 bits/s.
+FTH=121
V.17. 12000 bits/s.
+FTH=122 V.17 (short train). 12000 bits/s.
+FTH=145 V.17. 14400 bits/s.
+FTH=146 V.17 (short train). 14400 bits/s.
+FTM=<mod> — Transmit FAX Data with <mod> Carrier
+FTM=<mod> command causes the modem to transmit data using the
modulation defined as below:
Command Modulation Speed
+FTM=3 V.21 channel 2. 300 bits/s.
+FTM=24
V.27ter. 2400 bits/s.
+FTM=48
V.27ter. 4800 bits/s.
+FTM=72 V.29. 7200 bits/s.
+FTM=96 V.29. 9600 bits/s.
+FTM=73
V.17. 7200 bits/s.
+FTM=74
V.17 (short train). 7200 bits/s.
+FTM=97
V.17. 9600 bits/s.
+FTM=98 V.17 (short train). 9600 bits/s.
+FTM=121 V.17. 12000 bits/s.
+FTM=122 V.17 (short train). 12000 bits/s.
+FTM=145 V.17. 14400 bits/s.
+FTM=146 V.17 (short train). 14400 bits/s.
+FTS=<value> — Transmission Silence