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AT Commands Reference
4.2.1.4
+CGSN, Request Product Serial Number Identification
This command requests the product serial number identification, displayed with the prefix "IMEI".
Command
AT+CGSN
AT+CGSN?
Example
AT+CGSN
+CGSN: IMEI448954035283579
4.2.1.5
+CSCS, Select Terminal Character Set
This command selects the terminal character set used on the g20. The g20 supports the following character sets: GSM, UCS2,
UTF8, 8859-1 and ASCII.
The default value, set upon system initialization, is ASCII.
Set Command
Command
+CSCS=[<chset>]
Read Command
Command
AT+CSCS?
Test Command
Command
AT+CSCS=?
42
Response/Action
+CGSN: <IMEI>
Response/Action
OK
or:
+CMS ERROR: <err>
Response/Action
+CSCS: <selected character set>
Response/Action
+CSCS: (<supported character sets>)
98-08901C68-O
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