How To: SMS Messaging with Multi-Tech CDMA modems

How To: SMS Messaging with Multi-Tech CDMA modems

- Check message storage and indication settings:

at+cpms?<CR>
+CPMS:"MT",0,30,"MO",0,30

OK
at+cnmi?<CR>
+CNMI:2,1,1,1,0

OK


- Send an SMS message:

at+cmgs="7632427516"<CR>
Test Message<ctrl + Z>
+CMGS:2
OK


- Status report received from provider:

+CDS:0,2,2,"7632427516",129,"06/02/17,10 :53 :31","06/02/17,10 :53 :36",32768


- Indication that a message was received:

+CMTI:"MT",0,0


- Read the received SMS message from storage location 0:

at+cmgr=0<CR>
+CMGR:"REC UNREAD","7632427516","06/02/17,10 :51 :42",0,2,0,0,0,13
Test Message
OK


- Delete the received message from storage location 0:

at+cmgd=0<CR>
OK


* NOTE: You can find the description and usage for each of the above commands in the AT Commands For CDMA Wireless Modems Reference Guide. There are a few other commands associated with SMS messaging listed in the guide also.