A modem communicates with a data source over multiple signal channels. The modem receives multiple data packets originally sent by the data source and at least one correcting packet loading reassembly information over the signal channels, and determines if one or more of the data packets originally sent by the data source are lost. The modem determines if the received data packets are enough to recover the one or more lost data packets, and recovers the one or more lost data packets using the received data packets and the reassembly information if the received data packets are enough to recover the one or more lost data packets. The modem removes the correcting packet loading the reassembly information and sends out the received data packets and the one or more recovered data packets.