systems and methods for utilizing unused space in expensive message based communication to embed messages from a sender device to a receiver device to maximize payload usage over a potentially fee - based messaging service . one or more machine - to - machine messages may be embedded in unutilized transport space when other communications , that may potentially be delivered over a fee - based network , are initiated at a device . the machine - to - machine message and other communications may be extracted from a combined message package at a receiving device and processed as if they were independently transported . machine - to - machine messages may be segmented and embedded across multiple unrelated communication packages and later reassembled .