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4.FAX CLASS 1 COMMANDS
+FCLASS=n - Select Service Class
+FCLASS=n command sets the active service class.
Parameters: 0-1
Command options:
+FCLASS=0 Select Data Mode (default)
+FCLASS=1 Select Facsimile Class 1
+F<command>? - Report Active Configuration
+F<command>? interrogates the modem to determine the active configuration.
Typical responses are:
+FCLASS?0 if in data mode; 1 if in fax mode (The modem supports class 1 only)
+F<command>=? - Report Operating Capabilities
+F<command>=? can be used to determine the operating capabilities of the modem.
Valid responses are:
+FCLASS=? 0 or 1
+FTM=? 24, 48, 72, 96, 73, 74, 97, 98, 121, 122, 145, 146
+FRM=? 24, 48, 72, 96, 73, 74, 97, 98, 121, 122, 145, 146
Fax Modulation Table
Value Modulation & Speed
3 V.21 ch. 2 300
24 V.27 ter 2400
48 V.27 ter 4800
72 V.29 7200
73 V.17 7200
74 V.17 w/st 7200
96 V.29 9600
97 V.17 9600
121 V.17 12000
122 V.17 w/st 12000
145 V.17 14400
146 V.17 w/st 14400
All other codes are reserved. st = V.17 short training
+FTS=n - Stop Transmission and Wait
+FTS=n causes the modem to terminate a transmission and wait for n 10-ms intervals before
responding with the OK result code. An ERROR response code results if this command is issued
while the modem is on-hook.