User guide
3GPP TS 27.007 AT COMMANDS
53 AT Commands for EV-DO-EV3 Modems
Request Product Serial Number Identification +CGSN
Execute command returns the modem’s mobile equipment identifier (MEID) without command echo.
Test command returns OK result code.
Syntax
Command Command type
AT+CGSN Execute
AT+CGSN=? Test
Notes
The MEID is an 18-digit number.
Reference: 3GPP TS 27.007.
Select TE Character Set +CSCS
Set command sets the current character set used by the device.
Read command returns the current value of the active character set.
Test command returns the supported values for parameter <chset>.
Syntax
Command Command type
AT+CSCS=[<chset>] Set
AT+CSCS? Read
AT+CSCS=? Test
Parameters and Values
<chset> Character set.
IRA International reference alphabet (ITU-T T.50). Default: IRA.
Notes
Reference: 3GPP TS 27.007.
International Mobile Subscriber Identity (IMSI) +CIMI
Execute command returns the value of the Internal Mobile Subscriber Identity (IMSI) stored in the device.
Test command returns OK result code.
Syntax
Command Command type
AT+CIMI Execute
AT+CIMI=? Test
Notes
Reference: 3GPP TS 27.007.










