Abstract: A system and method for transmitting a message over multiple communication networks is disclosed. In one exemplary embodiment, the present invention receives data to be transmitted to a receiver system; encrypts and compresses the data per business ruless, identifies the communication systems available to transmit the received data; determines the frame size that can be used on all of the business rule subset of identified communication systems; and passes frames of the received data to the identified communication systems, the passed frames being sized according to the determined frame size.