
GT300 @Track Air Interface Protocol
4.2.3 Remote SIM Contact Control
The backend server can use command AT+GTBEI to control the visibility of the SIM contact
menu of the terminal. If the menu is disabled, the end user can not access the information of the
SIM contacts via the GUI menu of the terminal. But the terminal can still use the SIM contacts
information to match the incoming call and incoming message when proper.
Example 1:
To enable the SIM contact menu, configure the terminal with the following command:
AT+GTBEI=gt300,,,0,80,2,0,10,116.228.221.61
,7003,,,1,0001
Example 2:
To disable the SIM contact menu, configure the terminal with the following command:
AT+GTBEI=gt300,,,0,80,2,0,10,116.228.221.61
,7003,,,0,0001
The configuration is done when the backend server receives the following message:
+ACK:GTBEI,135790246811220,0001,20090112104725,000A,0102070202
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