Quectel EC25

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 170 / 231
10.13. AT+CGSMS Select Service for MO SMS Messages
The command specifies the service or service preference that the MT will use to send MO (mobile
originated) SMS messages.
Parameter
The circuit switched service route is the default method.
AT+CGSMS Select Service for MO SMS Messages
Test Command
AT+CGSMS=?
Response
+CGSMS: (list of currently available <service>s)
OK
Read Command
AT+CGSMS?
Response
+CGSMS: <service>
OK
Write Command
AT+CGSMS=[<service>]
Response
OK
If there is any error related to ME functionality:
+CME ERROR: <err>
Maximum Response Time
300ms
Reference
3GPP TS 27.007
<service> A numeric parameter which indicates the service or service preference to be used
0 GPRS
1 Circuit switch
2 GPRS preferred (use circuit switched if GPRS not available)
3 Circuit switch preferred (use GPRS if circuit switched not available)
NOTE