
Vjoy Car Electronics Limited
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www.vjoycar.com
12
position completely and consolidate it with the dome sheet nearby.
Choose SIM card:
The type of the SIM card is GSM card (the SIM card of China Mobile
is recommended).
Ensure sufficient money is within the SIM card in order to pay the
communication fee.
Prepare a SIM card for mobile phone (the SIM card of China Mobile
is recommended), make sure that the card has opened such functions
of Caller ID and sending and receiving SMS. If service platform
real-time tracking is in need, then GPRS function should be open.
Chapter IV Commands Corresponding to and Operation
Method of Basic Functions
1. Location Inquiry
(1) SMS Inquiry
Create 988 + password command (defaulted password as 0000) via
mobile phone and send it to the terminal mobile phone number; after
successful sending, the guardian’s mobile phone will receive a piece of
message. See the flow as follows: