Chapter 3 – Using Your Wireless Modem
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide
20
Using Short Message Services (SMS)
Send a Short Message to a Specified Number.
Type
AT+CMGS="8585551212" <press Enter>
Then type your message:
Please call me soon. <press ctrl Z>
The modem may respond with
+CMGS:<mr> OK
Write a Message to Memory.
You can store a message to send it at a later date.
Type
AT+CMGW="8585551212" <press Enter>
Type the message.
<press ctrl Z>
The modem may respond with
+CMGW: 4 OK
(The message is stored in the index as message 4.)
Send a Message from Storage.
Type
AT+CMSS=
x
,"8585551212" <press Enter>
The modem may respond with
+CMSS: 1 OK
(The transmission is successful. One SMS message is
sent.)
Note:
The
x
represents and index location.
View a List of Stored Messages.
Type
AT+CMGL=
x
<press Enter>
For
x
, substitute one of the following:
"UREAD"
Show all unread messages.
"READ"
Show all read messages.
"USENT"
Show all unsent messages.
"SENT"
Show all sent messages.
"ALL"
Show all d messages.
The modem will respond
AT+CMGL: 1,"REC UNREAD","8585551212",1...
The modem will continue until all UNREAD messages, numbers, and index number are listed.
Read a Stored Message.
Type
AT+CMGR=
x
<press Enter>
The modem may respond with
+CMGR: "REC READ", "8585551212", ......
Note:
The
1
stands for the number of the location to be read. The total number of locations depends on
the amount of memory in your modem.
Note:
The
x
represents and index location.
Delete a Stored Message.
Type
AT+CMGD=
x,n
<press Enter>
For
n
, substitute one of the following:
0
Delete message at location <include the index number>
1
Delete all READ messages.
2
Delete all READ and SENT messages.
3
Delete all READ, SENT, and UNSENT messages.
4
Delete ALL messages.
The modem will respond
OK.
Note:
The
x
represents and index location.
