User Manual

 send command AT+CMSS=<index><cr>
where:
<index>: SMS location index
 wait for response:
Response
Reason
Action
+CMSS: <mr>
OK
Message has been successfully
sent. <mr> represents the message
reference number.
proceed ahead
ERROR
some error occurred
Enable the extended error codes
report (see par. 4.4.2.1) and retry.
+CMS ERROR: 330
SMSC address unknown
Insert SMSC address (see par.
5.6.1.3)
+CMS ERROR: 41
"Temporary Failure", may be that
the device is not registered on any
network
Check for signal strength and
network registration
+CMS ERROR: 331
No network service
Check for signal strength and
network registration
+CMS ERROR: 1
Unassigned number
The destination address number
does not exist. Check it and repeat
command.
+CMS ERROR: 42
network congestion
Retry later
+CMS ERROR: 96
Mandatory information missing
Check for destination address in
the SMS, overwrite it and retry.
For example:
1- Let us assume you want to send a SMS that was written to the storage index position
number 3. We suppose you already have set up the device for text SMS mode as described on
the previous paragraphs:
command
AT+CMSS=3
response:
+CMSS: 1
OK
In this case, the SMS was successfully sent to the destination and its network message
reference number is 1.
A new SMS can be sent directly to the network without storing it.
 send command AT+CMGS="<da>"<cr>
where: