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DE910-DUAL AT commands reference guide
80392ST10102A Rev.2 – 2012-07-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 64 of 261
+CSCS - Select TE Character Set
AT+CSCS=
[<chset>]
Set command sets the current character set used by the device.
Parameter:
<chset>
- character set
“IRA” - international reference alphabet (ITU-T T.50)
AT+CSCS?
Read command returns the current value of the active character set.
AT+CSCS=?
Test command returns the supported values for parameter
<chset>
.
Reference
3GPP TS 27.007
+CIMI - Request International Mobile Subscriber Identify (IMSI)
AT+CIMI
This command returns the value of the Internal Mobile Subscriber Identity stored in
the device.
AT+CIMI=?
Test command returns
OK
result code.
Reference
3GPP TS 27.007
+CMUX - Multiplexing Mode
AT+CMUX=<mode>
Set command is used to enable/disable the 3GPP 07.10 multiplexing
protocol control channel
Parameters:
<mode>
multiplexer transparency mechanism
0 - basic option; it is currently the only supported value.
Note: after entering the
Multiplexed Mode
an inactive timer of five seconds starts.
If no CMUX control channel is established before this inactivity timer
expires the engine returns to
AT Command Mode
Note: all the CMUX protocol parameter are fixed as defined in GSM07.10
and cannot be changed.
Note: the maximum frame size is fixed:
N1=128
AT+CMUX=<fwd>,<
rev>
Set command is used for setting the number of forward and reverse links for data
calls and to indicate whether or not default service is Rate Set 1 or Rate Set 2
.
Odd multiplex (both <fwd> and <rev> are odd numbers) indicates Rate Set 1. Even
multiplex (both <fwd> and <rev> are even numbers) indicates Rate Set 2.
Parameters:
<fwd>
the forward MUX option specified in hexadecimal format:1~F
<rev>
the reverse MUX option specified in hexadecimal format:1~2
Note: The channel 1 can the all functions (voice call, data call, SMS and AT
commands). The channel 2 is the all function except the data call. The channel 3 is
only the DM for the debugging. The channel 4 is only the NMEA for the GPS.