Information technology. Telecommunications and information exchange between systems. Broadband private integrated services network. Inter-exchange signalling protocol. Signalling ATM adaptation layer

Information technology. Telecommunications and information exchange between systems. Broadband private integrated services network. Inter-exchange signalling protocol. Signalling ATM adaptation layer

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1   Scope

This International Standard specifies the signalling ATM adaptation layer (SAAL) protocol used at the interface between Broadband PINXs and between Broadband PISNs within the framework of the B-QSIG signalling system protocol family. The B-QSIG SAAL uses the functions provided by the ATM layer, and provides the services required by the B-QSIG Layer 3 signalling protocols.