A land mobile radio comprising: a processor configured to: receive as a user input a user network selection specifying one of a land mobile radio network or a cellular data network for communicating land mobile radio content, determining a preprogrammed network setting of the land mobile radio, said preprogrammed network setting specifying one of the land mobile radio network or the cellular data network for communicating land mobile radio content; determining if said preprogrammed network setting overrides the user network selection or vice versa; based upon said override determination selecting the land mobile radio network or the cellular data network for communicating land mobile radio content; a common land mobile radio application module configured to generate said land mobile radio content formatted in accordance with a land mobile radio network protocol format; a land mobile radio communication module configured to support a plurality of land mobile radio services which communicate said land mobile radio content over said land mobile radio network using a land mobile radio network transport protocol; and a cellular data network communication module configured to support said plurality of land mobile radio services by enabling communicating said land mobile radio content over said cellular data network using a cellular network transport protocol by encapsulating said land mobile radio content according to a packet switching protocol for communication over said cellular data network using said cellular network transport protocol. a processor configured to: receive as a user input a user network selection specifying one of a land mobile radio network or a cellular data network for communicating land mobile radio content, determining a preprogrammed network setting of the land mobile radio, said preprogrammed network setting specifying one of the land mobile radio network or the cellular data network for communicating land mobile radio content; determining if said preprogrammed network setting overrides the user network selection or vice versa; based upon said override determination selecting the land mobile radio network or the cellular data network for communicating land mobile radio content; receive as a user input a user network selection specifying one of a land mobile radio network or a cellular data network for communicating land mobile radio content, determining a preprogrammed network setting of the land mobile radio, said preprogrammed network setting specifying one of the land mobile radio network or the cellular data network for communicating land mobile radio content; determining if said preprogrammed network setting overrides the user network selection or vice versa; based upon said override determination selecting the land mobile radio network or the cellular data network for communicating land mobile radio content; a common land mobile radio application module configured to generate said land mobile radio content formatted in accordance with a land mobile radio network protocol format; a land mobile radio communication module configured to support a plurality of land mobile radio services which communicate said land mobile radio content over said land mobile radio network using a land mobile radio network transport protocol; and a cellular data network communication module configured to support said plurality of land mobile radio services by enabling communicating said land mobile radio content over said cellular data network using a cellular network transport protocol by encapsulating said land mobile radio content according to a packet switching protocol for communication over said cellular data network using said cellular network transport protocol.