BS ISO/IEC 13874:1995 Information technology. Telecommunications and information exchange between systems. Private Integrated Services Network. Inter-exchange signalling protocol. Path replacement additional network feature
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This International Standard specifies the signalling protocol for the support of the Path Replacement additional network feature (ANF-PR) at the Q reference point between Private Integrated Services Network Exchanges (PINXS) connected together within a Private Integrated Services Network (PISN).
ANF-PR is a feature which applies to an established call, allowing that call's connection between PINXS to be replaced by a new connection.
The Q reference point is defined in ISO/IEC 11579-1.
Service specifications are produced in three stages and according to the method specified in CCITT Recommendation 1.130. This International Standard contains the stage 3 specification for the Q reference point and satisfies therequirements identified by the stage 1 and stage 2 specifications in ISO/IEC 13863.
The signalling protocol for ANF-PR operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.
This International Standard also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between ANF-PR and other supplementary services and ANFS.
This International Standard is applicable to PINXS which can interconnect to form a PISN.
Open systems interconnection; Data transmission methods; Data transmission; Private networks; Private integrated services network; Information transfer; Transfer functions; Data transfer; Telecommunication; Computer networks; Data processing; Information exchange; Messages; Communication networks
