Westermo GDW-11 - Manual (Page 88)

88 Short Messages commands 6615-2220
+CMGF – Preferred Message Format
Description:
The message formats supported are text mode and PDU mode.
In PDU mode, a complete SMS Message including all header information is given as a
binary string (in hexadecimal format). Therefore, only the following set of characters is
allowed: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F}. Each pair or character is converted to a
byte (e.g.: ‘41’ is converted to the ASCII character ‘A’, whose ASCII code is 0x41 or 65).
In Text mode, all commands and responses are in ASCII characters.
The selected format is stored in EEPROM by the +CSAS command.
Syntax:
AT+CMGF=<mode>
Command example Possible responses Note
AT+CMGF? +CMGF:1 Current message format
OK Text mode
AT+CMGF=? +CMGF: (0,1) Text or PDU modes are
OK availabe
Sending an SMS Message in PDU mode
Command example Possible responses Note
AT+CMGF=0 OK Set PDU mode
AT+CMGS=14<CR> +CMGS: 4 Send complete MSG in
0001030691214365000 OK PDU mode, no SC address
004C9E9340B MSG correctly sent, <mr>
is returned