A communication device comprises physical layer circuitry configured to transmit and receive radio frequency electrical signals to communicate directly with one or more separate wireless devices via a cellular network and a non-cellular network; and processing circuitry configured to: initiate transmission of a packetized message using a non-cellular communication channel and a cellular communication channel, wherein the packetized message includes a plurality of internet protocol (IP) packets; indicate in an IP header field of an IP packet of the plurality of IP packets that the IP packet includes a packet sequence number; and include packet sequence numbers in the IP packets.