Abstract:
A thin ISUP layer (100) for internetworking an SS7 gateway and distributed ISUPs (90) residing on separate processors suitable for use in an SS7 network (50). The thin-ISUP layer (100) defines an operations/management module that controls circuit signaling functions between an SS7 gateway and the distributed ISUPs (90). A set of ISUP messaging functions are provided to control the sequencing of messages for distribution among the processors. Connection supervision is provided to maintain the connections between the processors. The thin ISUP layer (100) can be implemented between the MTP layer (84, 86, 88) and an ISUP layer (90) of distributed processors in the network (50).
Abstract:
An ATM connection (45) and call connection equipment (22) can be dynamically allocated between exchanges (20, 30). The connection is set up and released by a master switch (20) on one side of the connection. The slave (30) is controlled using standard signaling protocols and the physical connections (45) between the interworking units (40, 50) use circuit emulation according to AAL1. The master (20) controls the ATM connection (45) with standard signaling and the slave (30) with normal trunk signaling. The ATM connection (45) and connection (26) can be set up between the nodes (40, 50) when needed based on the traffic needs of the network (10).