Multi-Tech Systems MMCModem GPRS (MTMMC-G) - Manual (Page 14)

Chapter 4 – General AT Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 14
Product Serial Number +CGSN
Description: Allows the user application to get the IMEI (Interrnational Mobile Equipment Identity, 15-digit number) of
the product.
Values: No parameters
Syntax: AT+CGSN
Command Possible responses
AT+CGSN
Note: Get the IMEI 012345678901234
OK
Note: IMEI read from EEPROM
AT+CGSN
Note: Get the IMEI +CME ERROR: 22
Note: IMEI not found in EEPROM
Select TE Character Set +CSCS
Description: Informs the modem which character set is used by the DTE. The modem can convert each character of
entered or displayed strings. This is used to send, read or write short messages. See also +WPCS for
the phonebooks’ character sets.
Values: Set>
GSM GSM default alphabet.
PCCP437 PC character set code page 437.
CUSTOM User defined character set (cf. +WCCS command).
HEX Hexadecimal mode. No character set used; the user can read or write hexadecimal
values.
Default: GSM alphabet
Syntax: AT+CSCS=
Command Possible responses
AT+CSCS=”GSM”
Note: GSM default alphabet OK
Note: Command valid
AT+CSCS=”PCCP437”
Note: PC character set code OK
Note: Command valid
AT+CSCS=?
Note: Get possible values +CSCS: ("GSM","PCCP437","CUSTOM","HEX")
OK
Note: Possible values
Phonebook Character Set +WPCS
Description: Informs the modem which character set is used by the DTE for the phonebooks. The modem can
convert each character of entered or displayed strings. This is used to read or write phonebook entries.
See also +CSCS for the short messages character sets.
Values: Set>
TRANSPARENT Transparent mode. The strings are displayed and entered as they are stored in
SIM or in ME.
CUSTOM User defined character set (cf. +WCCS command).
HEX Hexadecimal mode. No character set used; the user can read or write
hexadecimal values.
Syntax: AT+WPCS=
Command Possible responses
AT+WPCS=”TRANSPARENT”
Note: Transparent mode OK
Note: Command valid
AT+WPCS=”CUSTOM”
Note: Custom character set OK
Note: Command valid
AT+WPCS=?
Note: Get possible values +WPCS: ("TRANSPARENT","HEX","CUSTOM")
OK
Note: Possible values