
3GPP TS 27.005 AT COMMANDS FOR SMS AND CBS
93 AT Commands for EV-DO-EV3 Modems
Parameters and Values Text Mode
<da> Destination address, string type represented in the currently selected character set. See
+CSCS. ASCII characters in the set (0 9), #,*,(A D);
Maximum length varies by carrier.
For Sprint and Aeris: Maximum length is 32 characters.
In case of Verizon: Maximum length is 20 characters.
<toda> Type of destination address.
129 Number in national format.
145 Number in international format. Contains the "+".
Notes Text Mode
The echo command E controls the echoing of entered characters back from the TA.
To send the message issue Ctrl-Z char (0x1A hex).
To exit without sending the message issue ESC char (0x1B hex).
If message is successfully sent to the network, the result is sent in the format:
+CMGS: <mr>
where <mr> - Message reference number.
If message sending fails for some reason, an error code is reported.
User data limit is 160 characters.
To discard SMS, press the ESC key. An OK response will be returned.
Example Text Mode
AT+CMGF=1
OK
AT+CMGS="9194547830"
> Test SMS
+CMGS: 1
OK
Notes
To avoid malfunctions, wait for the +CMGS: <mr> or +CMS ERROR: <err> response before issuing further
commands.
Reference: GSM 27.005.
Write Message to Memory +CMGW
PDU Mode
Execute command writes in the <memw> memory storage a new message.
Text Mode
Execute command writes in the <memw> memory storage a new message.
Test command returns the OK result code.
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