Specification :

Name: GSM GPS Car Alarm system

Model: S3543

The S3543 is designed for private cars, vehicles and so on. It’s a vehicle security system intergrating GPS,GSM and GPRS technologies. It mainly focuses on the protection of personal vehicles without any third-party helps to locate the vehicles.

Moreover, it could be used for fleet management software.

Through the S3543, the user can get its precise location data by SMS commands.

What you need is a SIMCard which support Call ID function.