TLT-2F GPS/GSM Car Tracker Instruction Manual V3.0
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confirmation message: SET UNLIMITED MODE OFF OK. At this time, the device can only receive incoming call
from 3 prestored numbers. Incoming call from non-prestored number will be hung up without other response.
After success to receive the instruction for incoming call restriction off (171), TLT-2F will return confirmation
message: SET UNLIMITED MODE ON OK. The device can answer incoming call from any cell phone.
Note: Default setting is incoming call restriction on.
11. Phone positioning function
Description: If incoming call is from one of the three prestored phone numbers and it is hung up after ringing
for 2-
5 times, the device will send position information with the same format as “request for single positioning” to
the incoming call number. The information status is STATE: CALL. If non-prestored phone number calls in, it will
be hung up without other response.
12. Emergency alarm (SOS)
Description: Press SOS key for over 3 seconds to send positioning information with information format
returned from “request for single positioning” to the three prestored phone numbers. Information status is ST
ATE:
SOS. At the same time, the first prestored phone number will be called. If it fails (the phone is turned off or cannot
be connected), the second and the third phone number will be called in sequence.
Note: If calling status is off, message will be sent to prestored user instead of calling him.
13. Power off Alarm
Instruction to turn on power failure warning: 011+user password
For example: 0110000
Instruction to turn off power failure warning: 010+user password
For example: 0100000
Description: After receiving instruction 011, the device will return confirmation information: DEFENCE ON
and enter defence status. Once external power supply is cut off unexpectedly, the device will send positioning
information of “request for single positioning” to the thre
e prestored numbers. Information status is STATE: DEF.
At the same time, the first prestored phone number will be called. If it fails (the phone is turned off or cannot be
connected), the second and the third phone number will be called in sequence.
After receiving instruction 010, the device will return confirmation information: DEFENCE OFF. Then Power
off Alarm is cancelled and the device will stop monitoring unexpected cutoff of external power supply.
Note:
1. Default power failure warning is off.
2. If calling status is off, message will be sent to prestored user instead of calling him.
