Chapter 4: Using the Commands
December 31, 2007 AT Commands Reference Manual 4-11
Setting the Notification Indication for Incoming Messages
(Using AT+CNMI)
AT+CNMI=,1 //To receive indications of new incoming MT messages, the second
parameter of +CNMI should be set to 1
OK
+CMTI: "SM",4 //When a new MT message is received, the unsolicited response
+CMTI will be displayed, denoting the message index
AT+CMGR=4 //Use the new message index to read it
+CMGR: "REC UNREAD","+97254565132",,"05/02/13,07:15:36+08"
<message body>
OK
AT+CMGD=4 //Delete the message after reading it
OK
Another Possible Option for Setting the CNMI Notification
Indication
AT+CNMI=,2 //To have new incoming MT messages displayed on the terminal, the
second parameter of +CNMI should be set to 2
OK
+CMT: "+97254565132","03/3/24,15:38:55"
<message contents> //When a new MT message is received, the unsolicited response
+CMT is displayed along with the message
AT+CNMA //To acknowledge receipt of a message, use the AT+CNMA command
within 60 seconds of the +CMT unsolicited response
OK
The acknowledged message is not saved in the database. If the +CMT unsolicited response is not
acknowledged within 60 seconds, the new message is saved in database.
Setting TEXT Mode Parameters (Using AT+CMGW and
AT+CMGS)
AT+CSMP?
+CSMP=17,167,0,0
OK
AT+CMGW="0544565034"
> text is entered <ctrl z>
+CMGW: 141
OK
AT+CSDH=1
OK
AT+CMGR=141
+CMGR: "STO UNSENT","0544565034",,,129,17,0,0,167,"+ 97254120032",145,<messsage length>
<message body>
AT+CSMP= 1,256,0,0
+CMS ERROR: numeric parameter out of bounds
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