1vv0301515 Rev.1
Page 35 of 59
2018-07-18
SMS Management
The SMS Service stores, sends, receives, and deletes SMSs, which are short text messages up
to 160 characters long. Before using the SMS messages, you must configure the Short Message
Service.
2.10.1.
Select SMS Format Type
The module supports two SMS formats:
•
PDU mode
•
Text mode
The module uses the PDU format to send a message on the air. The PDU mode enables the user
to edit the message in PDU format. If the user is familiar with PDU encoding, he can operate with
PDU by selecting that mode and use the appropriate commands.
The present document uses the Text mode to explain how to operate with SMS. Here is the AT
command to select the mode.
AT+CMGF=[<mode>]
Examples
Test command returns the supported range of values:
AT+CMGF=?
+CMGF: (0,1)
OK
Read command returns the current setting
AT+CMGF?
+CMGF: 0
PDU mode
OK
Set up Text Mode for the SMS:
AT+CMGF=1
OK
This setting is active until the module is turned OFF.
