Cut off engine by phone gradually for safety
Check the Car's location by SMS
Arm/disarm system by phone call or SMS

Monitor the voice remotely by phone
Movement Alert, it is used as an alarm
Geo-Fence Alert. If the car overstep the boundary, it will send out alert
Over-speed Alert
The above products could work with the GSM networks of 900MHz/1800MHz
If the center is setup, user can check the car's real address (city, street, etc) by SMS (optional, need center's support)
Small size with backup battery. Anti-tamper design, Once power supply is cut off illegally, it will send out alert.
It can be triggered by normal alarm (optional)
It can be arm/disarmed by original remotes (optional)
SOS button, call center for help(optional)