Multi-Tech Systems Modem Module MT3334SMI User Manual
Page 34

ModemModule Developer’s Guide
MT3334SMI
34
Command:
+FCLASS=
Function:
Select Service Class
Values:
0, 1, 2
Default:
0 (data mode)
Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.
Description:
This command configures the Service Class for the modem.
The command options are:
+FCLASS=0
Select Data mode
+FCLASS=1
Select Fax Class 1 operation
+FCLASS=2
Select Fax Class 2 operation
Example: To configure the modem for Class 1 fax operation, enter the command AT+FCLASS=1
and hit Enter. The modem will then accept Class 1 commands.
Command:
+FTS=
Function:
Stop Transmission and Wait
Values:
= 0-255 in 10 ms intervals
Default:
0
Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.
Description:
The +FTS= command causes the modem to stop any transmission, then wait for the
amount of time specified by , then send an OK result code to the PC. If this
command is entered with the modem on-hook, the ERROR result code is displayed.
The main function of +FTS is to enforce the 75+/-20 ms of silent time needed
between modulation changes.
Note: The +FTS= command can be entered anywhere in the command string.
Command:
+FTS=?
Function:
Display the wait-for-silent time range
Values:
= 0-255 in 10 ms intervals
Default:
0
Result Codes: the current range of values supported by the modem.
Description:
The +FTS=? command causes the modem to display the valid (supported) range of
time intervals specified by the +FTS= command.
Command:
+FRS=
Function:
Stop Transmission and Wait
Values:
Default:
0
Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.
Description:
The +FRS= command causes the modem to listen for a specified amount of silence
on the line, then display an OK result code when silence has been present on the
line for the amount of time specified. The value
Note: The +FRS= command can be entered anywhere in the command string.