166 Appendix C: Modem information
+FTH=<m> Transmits high-level data link control (HDLC) data with <m> carrier:
<m>=3 Transmits using V.21 Channel 2 modulation at 300 bits per second (bps)
<m>=24 Transmits using V.27ter modulation at 2400 bps
<m>=48 Transmits using V.27ter modulation at 4800 bps
<m>=72 Transmits using V.29 modulation at 7200 bps
<m>=96 Transmits using V.29 modulation at 9600 bps
<m>=73 Transmits using V.17 modulation at 7200 bps
<m>=74 Transmits using V.17 (short train) modulation at 7200 bps
<m>=97 Transmits using V.17 modulation at 9600 bps
<m>=98 Transmits using V.17 (short train) modulation at 9600 bps
<m>=121 Transmits using V.17 modulation at 12,000 bps
<m>=122 Transmits using V.17 (short train) modulation at 12,000 bps
<m>=145 Transmits using V.17 modulation at 14,400 bps
<m>=146 Transmits using V.17 (short train) modulation at 14,400 bps
+FRH=<m> Receives high-level data link control (HDLC) data with <m> carrier:
<m>=3 Receives using V.21 Channel 2 modulation at 300 bits per second (bps)
<m>=24 Receives using V.27ter modulation at 2400 bps
<m>=48 Receives using V.27ter modulation at 4800 bps
<m>=72 Receives using V.29 modulation at 7200 bps
<m>=96 Receives using V.29 modulation at 9600 bps
<m>=73 Receives using V.17 modulation at 7200 bps
<m>=74 Receives using V.17 (short train) modulation at 7200 bps
<m>=97 Receives using V.17 modulation at 9600 bps
<m>=98 Receives using V.17 (short train) modulation at 9600 bps
<m>=121 Receives using V.17 modulation at 12,000 bps
<m>=122 Receives using V.17 (short train) modulation at 12,000 bps
<m>=145 Receives using V.17 modulation at 14,400 bps
<m>=146 Receives using V.17 (short train) modulation at 14,400 bps
Table 14: Common modem commands
Code/Command Function
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