A study on B-ISDN signaling interworking function between the ITU-T and the ATM-Forum

ITU-T and ATM Forum lead the standardization of signaling functions for the call/connection control at B-ISDN. The one is applicable to the system in the public network, and the other is applicable to configure ATM private network mainly related with various terminal equipments. We would like to focus on the point-to-point call/connection control at user-network interface because it is the core part of signalling function. Generally B-ISBN developers have developed ATM switches and B-NTs as network equipments, and B-TA as a terminal equipment. But many kinds of terminal-equipments are needed to provide various services in B-ISDN. If the public network can accommodate the terminal-equipments of ATM-Forum´s, it´s very effective to provide many kinds of terminal-equipments. Therefore, this paper identifies the problems that can be occurred on the signaling procedure, when a UNI 4.0 terminal-equipment is connected to a B-ISDN the public network, and provides and good alternatives that can handle this kind of call/connection well