ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev.4 Page 249 of 545 2020-04-15
3.5.18. AT+CGSMS - Select Service for MO SMS Messages
Set command is used to specify the service or service preference that the MT will use to send MO SMS
messages.
AT+CGSMS=[<service>]
Parameter:
indicates the service or service preference to be used
GPRS preferred. Use circuit switched if SMS via GPRS service not
available or GPRS not registered.
circuit switched preferred. Use GPRS if SMS via circuit switched not
available.
Entering AT+CGSMS= returns OK but has no effect.
AT+CGSMS?
The read command returns the currently selected service or service preference in the format:
+CGSMS: <service>
AT+CGSMS=?
Test command reports the supported list of currently available <service>.
The <service> value is saved on NVM as global parameter.