SSH EN 302 092-1 V1.2.2:1999

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No. 7 (SS7); Call control in a separated call and bearer control environment; Part 1: Protocol specification

Scope

ThepresentdocumentspecifiesasignallingprotocolforthepurposeofcallcontrolattheQB,SB,TB,andco-incident SB/TB referencepointswithin,between,andattheaccesstoBroadbandPrivateIntegratedServicesNetworksand within,between,andattheaccesstoEuropeanBroadbandIntegratedServicesDigitalNetworks.Theprotocoloperates betweentwoadjacentcallcontrolentities.Theprotocolisapplicabletoaterminalornetworknodeinaseparatedcall andbearer(connection)controlenvironmentforthesupportofcallshavingnone,asinglebearerormultiplebearers. Theprotocolisapplicabletoatwo-partycall.Theprotocolalsoprovidesforwardcompatibilitytotheextentthatan implementationcanalsooperatewithinamulti-partycallwithotherimplementationsthatuseadditionalcapabilities, providedtheimplementationisdeployedwhereitdoesnotneedtobeawareofmorethantwoparties.