SMS – Short Message Service (a text message).
The C-track can also communicate vehicle location and status information back to the base station via SMS. By the use of advanced encryption and compression techniques, the system allows users to specify up to 25 location/status events to be communicated back to the base station for the price of a single text message. C-track units can be configured to drop down into SMS mode when GPRS/3G coverage is lost, resuming GPRS/3G communication when coverage is resumed.
SMS is only utilised as a fallback option on Ctrack IVMS Units.