GS-818 GPS/GSM/GPRS Vehicle Tracker User Manual
64 Copyright © 2011 San Jose Technology, Inc. All Rights Reserved.
CPOL Mode Setup
Use the SMS command CPOL (Preferred Operator List) to pre-define the preferred GSM carriers (mobile service operators)
for the device to log in when roaming. The code of carriers is in numeric format (MCC+MNC).
While Roaming, the device will try to log in the pre-defined carriers based on the list.
Setup Format: #username,0000,CPOL,<%1>,<%2>,<%3>,<%4>,<%5>*
Command: #username,0000,CPOL,46697,45400,52501,50212,51010*
Note: Because the command will modify the settings built-in the SIM card, it’s highly recommended to check the original
settings before you attempt to change it. Otherwise you may have to consult your GSM operator for the original settings.
Table: CPOL Mode Setup Format Description
Table: CPOL Mode Setup Response Description
SMS Text
Description
#
Start sign.
username
Default user name of the device.
If you have changed the username, please use the updated one.
0000
Default password.
If you have changed the password, please use the updated one.
CPOL
Function Mode: “CPOL” means to arrange the list for searching Operator in numeric format
(MCC+MNC)
46697
<%1>= Operator in numeric format (MCC+MNC)
45400
<%2>= Operator in numeric format (MCC+MNC)
52501
<%3>= Operator in numeric format (MCC+MNC)
50212
<%4>= Operator in numeric format (MCC+MNC)
51010
<%5>= Operator in numeric format (MCC+MNC)
*
End sign.
Situation
Response
Success
username, Preferred Operator List: 1=%s, 2=%s, 3=%s, 4=%s, 5=%s
Incorrect function code
username, CPOL setup fail.
