A multi-mode in-vehicle control unit (ICU) contains a plurality of modems.
Each modem allows the multi-mode ICU to transmit vehicle data over a
different kind of transmission network. Exemplary transmission networks
include wireless data networks, cellular telephone networks and satellite
networks. Vehicle data is collected. The multi-mode ICU selects one of the
modems for transmission of vehicle data to a processing center. Priorities
can be assigned to the transmission networks and or modems to control
order the transmission network selection process.
