Multi-Tech Systems F2 User Manual

Chapter 3 – Using Your Wireless Modem

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

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

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

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

+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