Why does TrimTrac use GSM SMS instead of GPRS (General Packet Radio Service)?
TrimTrac is intended for use in applications that require the periodic sending and receiving of relatively small amounts of data, with an emphasis on low power consumption by the device. GPRS is better suited for applications that involve real-time, two-way communication and the transfer of larger amounts of data (as might be required by an application such as high- end commercial fleet management, for example). GPRS has disadvantages relative to SMS for the uses for which TrimTrac is intended. In particular, GPRS’ coverage area is not as extensive as SMS. It would also create a greater drain on the device’s power, and would increase the cost of the device. SMS is a better fit than GPRS for the TrimTrac locator’s target applications, as it offers better coverage, improved power conservation, and minimizes the device’s cost.
