Chapter 3 – Using Your Wireless Modem

SMS Examples

Send Example

Send an SMS message to another SMS compatible device

at+cmgf=1 (set to text mode)

OK

at+cpms="SM","SM" (set memory storage when writing and sending SMS messages) +CPMS: 0,50,0,50

OK

at+cmgs="7632273726" (send message to the number specified in quotes)

>TEST message ONE. (Type message after the > symbol and hit <CTRL + Z> to send the message) +CMGS: 52

OK

Receive Examples

Receive Example 1: Receive SMS messages in text mode by saving to SIM memory – Notification via +CMTI unsolicited response code:

at+cmgf=1 (set to text mode)

OK

at+csms=0 (set to Phase 1) +CSMS: 1,1,1

OK

at+cnmi=2,1,0,0,0 (set to display +CMTI indication when SMS is received)

OK

at+cpms="SM","SM" (set the read and write storage of SMS to SIM) +CPMS: 0,50,0,50

OK

+CMTI: "SM",1 (indication that message was received and stored to SIM location 1) at+cmgr=1 (read message stored in location 1)

+CMGR: "REC UNREAD","+17632273726",,"06/03/17,13:55:22+00" TEST1

OK

at+cmgd=1 (delete message that is stored in location 1)

OK

Receive Example 2: Receive SMS message in text mode by directly routing the received message to the TE through the serial port using Phase 2:

at+cmgf=1 (set to text mode)

OK

at+csms=0 (set to Phase 2) +CSMS: 1,1,1

OK

at+cnmi=2,2,0,0,0 (set to receive SMS and route directly to TE)

OK

+CMT: "+17632273726",,"06/03/17,13:59:18+00" (message received and directly routed to TE) TEST2

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide

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Multi-Tech Systems MTCBA-G-U manual SMS Examples, Send an SMS message to another SMS compatible device