Abstract: A method of selecting primary and secondary cellular networks for a vehicle comprises measuring cellular connectivity parameters for cellular communication between a first subscriber identity module (SIM) and a first cellular network and for cellular communication between a second SIM and a second cellular network, comparing measured cellular connectivity parameters for the first SIM to measured cellular connectivity parameters for the second SIM, designating one of the first SIM and the first cellular network and the second SIM and the second cellular network as a primary network, and designating the other one of the first SIM and the first cellular network and the second SIM and the second cellular network as a secondary network, measuring cellular connectivity parameters for the primary and secondary networks, comparing the measured cellular connectivity parameters for the primary and secondary networks, switching designation of the primary and secondary network based on measured cellular connectivity para

Abstract: A method of selecting primary and secondary cellular networks for a vehicle comprises measuring cellular connectivity parameters for cellular communication between a first subscriber identity module (SIM) and a first cellular network and for cellular communication between a second SIM and a second cellular network, comparing measured cellular connectivity parameters for the first SIM to measured cellular connectivity parameters for the second SIM, designating one of the first SIM and the first cellular network and the second SIM and the second cellular network as a primary network, and designating the other one of the first SIM and the first cellular network and the second SIM and the second cellular network as a secondary network, measuring cellular connectivity parameters for the primary and secondary networks, comparing the measured cellular connectivity parameters for the primary and secondary networks, switching designation of the primary and secondary network based on measured cellular connectivity para

Abstract: A telematics module includes modems and a modem selecting module, which communicates with a network device according to a SCTP. The modem selecting module includes RAT network and signal status modules. The RAT network module determines a RAT network availability status of each of the modems. The signal status module determines signal quality status parameters of each of the modems. The modem selecting module: determines which one of the modems has a higher data throughput based on the RAT network availability status and the signal quality status parameters of each of the modems; sets the one of the modems with the higher data throughput as an active modem and sets another modem as inactive, such that the another modem is in at least one of a standby or backup mode; and communicates with the network device via the one of the modems according to the SCTP.

Abstract: A system and method of selecting a modem for cellular communications while the vehicle is in a primary propulsion off state. The method includes: detecting a transition from a primary propulsion on state to a primary propulsion off state of the vehicle; after detecting the transition from the primary propulsion on state to the primary propulsion off state, measuring one or more cellular connectivity parameters for a plurality of modems included in the vehicle; based on the cellular connectivity parameter(s), selecting a modem of the plurality of modems; after selecting the modem of the plurality of modems, then turning off non-selected modem(s) of the plurality of modems, wherein the non-selected modem(s) include the plurality of modems other than the selected modem; and sending a selected modem indication to a remote server, wherein the selected modem indication indicates to the remote server to use the selected modem when sending messages to the vehicle.