Syntax, Notes, Multiplexing mode +cmux – Synaccess Networks NP-0801DTM User Manual
Page 46: Parameters and values

3GPP TS 27.007 AT COMMANDS
HSPA+ AT Commands Reference Guide
46
International Mobile Subscriber Identity (IMSI) +CIMI
Execute command returns the value of the Internal Mobile Subscriber Identity stored in the SIM without
command echo.
Test command returns OK result code.
Syntax
Command
Command type
AT+CIMI
Execute
AT+CIMI=?
Test
Notes
A SIM card must be present in the SIM card housing, otherwise the execute command returns ERROR.
Reference: 3GPP TS 27.007.
Multiplexing Mode +CMUX
Set command enables or disables the 3GPP TS 27.010 multiplexing protocol control channel.
Read command returns the current value of
+CMUX:
Test command returns the range of supported values for
Syntax
Command
Command type
AT+CMUX=
Set
AT+CMUX?
Read
AT+CMUX=?
Test
Parameters and Values
Multiplexer transparency mechanism.
0
Basic option. Currently the only supported value.
0
UIH frames used only; it is currently the only supported value.
Transmission rate.
5
115 200 bit/s. Default: 5.
Maximum frame size.
1‐1509
Default: 121.
Acknowledgement timer in units of ten milliseconds.
1‐255
Default: 10 (100 ms).
Maximum number of re‐transmissions.
0‐100
Currently only the range 0‐5 is supported. Default: 3.