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ISO/IEC 13865:2003

Current Revision

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network Specification, functional model and information flows Call Transfer supplementary service

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ISO/IEC 13865:2003 specifies Supplementary Service Call Transfer (SS-CT), which is applicable to various basic services supported by Private Integrated Services Networks (PISNs). Basic services are specified in ISO/IEC 11574.

SS-CT is a supplementary service which enables a user to transform two of that user's calls (of which one must be answered) into a new call between the other two users of the two calls.

Supplementary service specifications are produced in three stages, according to the method described in ETS 300 387. ISO/IEC 13865:2003 contains the stage 1 and stage 2 specifications of SS-CT. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clauses 7 and 8) identifies the functional entities involved in the supplementary service and the information flows between them.

ISO/IEC 13865:2003 contains two stage 2 specifications reflecting different ways of operating the service within the network: transfer by join and transfer by rerouteing.


SDO ISO: International Organization for Standardization
Document Number ISO/IEC 13865
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/IEC/JTC 1/SC 6
Publish Date Document Id Type View
Not Available ISO/IEC 13865:2003 Revision