Westermo GS-01 - Manual (Page 43)

43 6195-2201
+CMGS – Send message
Command syntax in text mode:
AT+CMGS= <da> [ ,<toda> ] <CR>
text is entered <ctrl-Z / ESC >
Command syntax in PDU mode:
AT+CMGS= <length> <CR>
PDU is entered <ctrl-Z / ESC >
The <address> field is the address of the terminal network to whom the message is sent.
To send the message, simply type <ctrl-Z> character (ASCII 26). The text can contain all
existing characters except <ctrl-Z> and <ESC> (ASCII 27).
This command is abortable using the <ESC> character when entering text.
In PDU mode, only hexadecimal characters are used (‘0’...’9’,’A’...’F’).
Example of use:
Application to GSM AT+CMGS=”+33146290800”<CR> Send a message in text
Please Call me soon, Fred.<ctrl-Z> mode
GSM to application +CMGS: <mr> Successful transmission
OK
Application to GSM AT+CMGS=<length><CR> Send a message in PDU
<pdu><ctrl-Z> mode
GSM to application +CMGS: <mr> Successful transmission
OK
The message reference <mr> which is returned back to the application is allocated by the
GSM module. This number begins with 0 and is incremented by one for each outgoing
message (successful and failure case) ; it is cyclic on one byte (0 follows 255).
Note: this number is not a storage number - outgoing messages are not stored.