Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 100 Ver. 1.00 – 10/29/2008
2.1.4.17. AT+CMUX Set Multiplexing mode
Command Function This command is used to enable/disable
the GSM 07.10 multiplexing protocol control
channel. Refer to subclause 9.2 for
possible <err> values. The AT command
sets parameters for the Control Channel. If
the parameters are left out, the default
value is used.
Command Functional Phone Control
Group
Command Format Query AT+CMUX=?
Response: +CMUX: (list of supported <mode>s),(list of
supported <subset>s),(list of supported
<port_speed>s),(list of supported
<N1>s),(list of supported <T1>s),(list of
supported <N2>s),(list of supported
<T2>s),(list of supported <T3>s),(list of
supported <k>s)
+CMUX: (1),(0),(1-7),(10-100),(1-255),(0-
100),(2-255),(1-255),(1-7)
OK
Write Format AT+CMUX=<mode>,[<subset>],
<port_speed>,<N1>,<T1>, <N2>,<T2>,
<T3>[,<k>]
Response OK
Read Format AT+CMUX?
Response If not in CMUX it will return the default
settings
If in CMUX it will return the current settings
Execution Format N/A
Response N/A