A gateway device configured to provide machine-to-machine communications with one or more client machines, comprising: a first cellular communication module configured to communicate with a first cellular network; a second cellular communication module configured to communicate with a second cellular network; at least one local communication module configured to communicate with one or more client machines; and a processor coupled to the first cellular communication module, the second cellular communication module, and the at least one local communication module, the processor arranged for operating one of the first cellular communication module or the second cellular communication module as a primary interface and the other one of the first cellular communication module or the second cellular communication module as a hot backup interface to route communications with at least one of the client machines; routing communications with the at least one of the client machines over the primary interface while maintaining the hot backup interface actively connected to its respective cellular network, wherein the first interface and hot backup interface are simultaneously active; monitoring communications on the primary interface by a session monitor module wherein attempted connections to one or more external servers are given a weighted value; determining whether communication with the at least one of the client machines should switch from the primary interface based on the weighted values of the plurality of attempted connections; routing communications, after determining that communication with the at least one of the client machines should switch from the primary interface, with the at least one of the client machines over the hot backup interface. a first cellular communication module configured to communicate with a first cellular network; a second cellular communication module configured to communicate with a second cellular network; at least one local communication module configured to communicate with one or more client machines; and a processor coupled to the first cellular communication module, the second cellular communication module, and the at least one local communication module, the processor arranged for operating one of the first cellular communication module or the second cellular communication module as a primary interface and the other one of the first cellular communication module or the second cellular communication module as a hot backup interface to route communications with at least one of the client machines; routing communications with the at least one of the client machines over the primary interface while maintaining the hot backup interface actively connected to its respective cellular network, wherein the first interface and hot backup interface are simultaneously active; monitoring communications on the primary interface by a session monitor module wherein attempted connections to one or more external servers are given a weighted value; determining whether communication with the at least one of the client machines should switch from the primary interface based on the weighted values of the plurality of attempted connections; routing communications, after determining that communication with the at least one of the client machines should switch from the primary interface, with the at least one of the client machines over the hot backup interface. operating one of the first cellular communication module or the second cellular communication module as a primary interface and the other one of the first cellular communication module or the second cellular communication module as a hot backup interface to route communications with at least one of the client machines; routing communications with the at least one of the client machines over the primary interface while maintaining the hot backup interface actively connected to its respective cellular network, wherein the first interface and hot backup interface are simultaneously active; monitoring communications on the primary interface by a session monitor module wherein attempted connections to one or more external servers are given a weighted value; determining whether communication with the at least one of the client machines should switch from the primary interface based on the weighted values of the plurality of attempted connections; routing communications, after determining that communication with the at least one of the client machines should switch from the primary interface, with the at least one of the client machines over the hot backup interface.