Abstract: A method and system for providing multiple packet channels for a circuit channel across a circuit-to-packet interworking unit includes establishing a circuit channel and a plurality of packet channels. Each of the packet channels is associated with a the circuit channel. A first one of the packet channels is selectively connected to the circuit channel to provide and end-to-end connection between a circuit endpoint and a first packet endpoint. A second packet channel is maintained for selective connection to the circuit channel to provide a second end-to-end connection between the circuit endpoint and a second packet endpoint.

Abstract: A method and system for translating between circuit and packet identifiers for a communication connection includes receiving an uplink circuit frame for a connection. The uplink circuit frame includes a circuit identifier. A common key is determined for the connection based on the circuit identifier. A packet identifier is determined for the connection based on the common key without a data search by indexing into a bearer path mapping table using the common key. The uplink circuit frame is translated into an uplink packet with the packet identifier for transmission to a remote endpoint of the connection.