AT Commands User Manual 4 General commands : - “GSM”: GSM default alphabet (GSM03.38 6.2.1). 9 4.1 Manufacturer identification +CGMI Command syntax Description AT+CGMI This command gives the manufacturer identification. OK or CME ERROR: AT+CGMI Test command OK AT+CGMI=? 4.2 Request model identification +CGMM Command syntax Description AT+CGMM This command gives the model identification. OK or CME ERROR: AT+CGMM Test command OK AT+CGMM=? 4.3 Request revision identification +CGMR Command syntax Description This command gives the revised version of the mobile station. OK or CME ERROR: AT+CGMR Test command OK AT+CGMR=?
4.4 Request product serial number identification +CGSN Command syntax Description AT+CGSN This command gets the product serial number, known as IMEI (International Mobile Equipment Identity) of the MS. OK or CME ERROR: AT+CGSN Test command OK AT+CGSN=? 4.5 Set TE character set +CSCS Command syntax Description AT+CSCS= AT+CSCS=”IRA” AT+CSCS= This command selects the TE character set. OK or CME ERROR: AT+CSCS=”IRA” Read command +CSCS=”IRA” OK AT+CSCS? Test command OK AT+CSCS=?