Multi-Tech Systems GPRS (MTSMC-G) ユーザーズマニュアル

Chapter 15 – GPRS Commands  

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 

159 

 

Description: 

The set command specifies the service or service preference that the modem will use to send MO SMS 
messages. 

 

The read command returns the currently selected service or service preference. 

 

The test command requests information on the currently available services and service preferences. 

Values: 

<service>: a numeric parameter which indicates the service or service preference to be used 

0   

GPRS 

1   

Circuit switched 

2   

GPRS preferred (use circuit switched if GPRS is not available) 

3   

Circuit switched preferred (use GPRS if circuit switched not available) 

Other values are reserved and will result in an ERROR response to the set command. 

Command 

AT+CGSMS= [<service>]

OK
ERROR 

At+CGSMS? +CGSMS: 

<service>

OK 

AT+CGSMS=? 

+CGSMS: (list of currently available 
<service>s) 
OK 

AT +CGSMS=0 

OK

AT+CGSMS=? 

+CGSMS=(0-3) 
OK