Two or more packets are generated from the same data stream (e.g., an audio signal) and are sent on a network. When the first of the two or more packets is received, a first optimal route for the first packet is determined, the first packet is sent on the first optimal route, and information about the first packet is stored in a packet list. When another packet is received, the process determines whether it is the second packet of the two or more packets by comparing at least one field in the second packet to the stored information about the first packet in the packet list. If there is a match, a second optimal route for the second packet is determined, and the second packet is sent on the second optimal route.