Specifications

3GPP
3GPP TS 27.007 V6.3.0 (2003-
06)
1
8
Release 6
5.6 Request international mobile subscriber identity +CIMI
Table 7: +CIMI action command syntax
Command
Possible response(s)
+CIMI
<IMSI>
+CME ERROR: <err>
+CIMI=?
Description
Execution command causes the TA to return <IMSI>, which is intended to permit the TE to identify the individual
SIM card or active application in the UICC (GSM or USIM) which is attached to MT. Refer subclause 9.2 for possible
<err> values.
Defined values
<IMSI>: International Mobile Subscriber Identity (string without double quotes)
Implementation
Optional.
5.7 Multiplexing mode +CMUX
Table 8: +CMUX parameter command syntax
Command
Possible response(s)
+CMUX=<mode>[,<subset>[,
<port_speed>[,<N1>[,<T1>
[,<N2>[,<T2>[,<T3>
[,<k>]]]]]]]]
+CME ERROR: <err>
+CMUX?
+CMUX: <mode>,[<subset>],<port_speed>,
<N1>,<T1>, <N2>,<T2>,<T3>[,<k>]
+CME ERROR: <err>
+CMUX=?
+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)
Description
This command is used to enable/disable the 3GPP TS 27.010 [45] 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.
Read command returns the current mode and the settings.
Test command returns the supported modes and parameters.
It is recommended that the MT/TA/TE should autobaud to the +CMUX command up to and including an interface speed
of 9600 bits/s.
The OK or +CME ERROR: <err> response is returned at the speed of the +CMUX command prior to entering
<mode>.
It is recommended that whenever the multiplexer control channel is released the MT/TA/TE should assume an interface
rate of up to and including 9600 bits/s for auto bauding purposes irrespective of any previous higher speed having been
selected.