Modem ID
3-4 AT Commands Reference Manual December 31, 2007
The following table shows the +CGSN, +GSN parameters.
Example
AT+CGSN?
+CGSN: "004400013805666"
OK
AT+GSN
+GSN: "004400013805666"
OK
+CSCS, Select Terminal Character Set
This command selects the G24 character set. The G24 supports the following character sets:
GSM, UCS2, HEX, UTF8, 8859-1 and ASCII.
The default value, set upon system initialization or when omitting <chset> in set command, is
ASCII.
Note: All commands except of +CUSD will treat "HEX" format just like UCS2.
Table 3-1: +CGSN, +GSN Parameters
<Parameter> Description
<sn> The IMEI (International Mobile Station Equipment Identity) number is comprised of
15 digits, as specified by GSM 03.03 [3]. IMEI numbers are composed of the
following elements, all in decimal digits:
Type Approval Code (TAC) - 6 digits
Serial Number (SNR) - 6 digits
Spare digit - 1 digit
The TAC and SNR are protected against unauthorized changes.
Command
Type
Syntax Response/Action
Set
+CSCS=[<chset>] OK
or:
+CMS ERROR: <err>
Read
AT+CSCS? +CSCS: <selected character set>
Test
AT+CSCS=? +CSCS: (<supported character sets>)
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