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

Chapter 6 – Network Service Commands 

  

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

36 

Syntax: 

Command syntax:    AT+WOPN=<format>,<NumOper>[,<lac>] 

syntax:   +WOPN: <format>,<AlphaOper> 

AT+WOPN=? 
Note: Test command 

OK 
  

AT+WOPN=0,20801 
Note: Give an operator in numeric format 

+WOPN: 0,”Orange F” 
OK 
Note: Alphanumeric answer 

AT+WOPN=0,99999 
Note: Give a wrong operator 

+CME ERROR: 22 
Note: Not found 

AT+WOPN=0,2081,36 
Note: Give an operator in numeric format for lac 36 

+WOPN: 0, “OrangeF” 
OK 
Note: Alphanumeric answer 

AT+WOPN=3,0 
Note: Erase NITZ PLMN names stored in flash 
memory. 

OK 

AT+WOPN=4 
Note: Read from EEPROM which method will be 
used for PLMN names. 

+WOPN:31 
OK 

AT+WOPN=4,<PlmnOns> 
Note: Write to EEPROM which method will be used 
for PLMN names. 

OK 

 

 
 

Description:  

This command selects one PLMN selector with access technology list in the SIM card that is used by 
AT+CPOL command. 

User controlled PLMN selector with access technology EF_PLMNwAct 

Note: if this file is not found EF_PLMNSel will be selected 

Operator controlled PLMN selector with access technology EF_OPLMNwAct 

 

Home PLMN selector with access technology EF_HPLMNwAct 

Syntax:   

AT+CPLS= <List> 

AT+CPLS? 
 
Note: Ask for selection of the SIM file 

+CPLS: 1 
OK 
Note: EF_OPLMNwAct is selected 

AT+CPLS=0 
Note: selection of EF_PLMNwAct 

Note: if EF_PLMNwAct is not present, EF_PLMNsel will be 
selected 

AT+CPLS=1 
Note: selection of EF_OPLMNwAct 

+CME ERROR: 3 
Note: EF_OPLMNwAct is not present 

AT+CPLS=? 
Note: Get possible values 
 

+CPLS: (0,1,2) 
OK 
Note: The 3 files with Acces technology are present and can 
be selected 

AT+CPLS=? 
 
Note: Get possible values 

+CPLS: (0) 
OK 
Note: Only EF_PLMNwAct or EF_PLMNsel can be selected