ISO/IEC 13865:2003

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

Publication date:   Mar 24, 2003

General information

90.60 Close of review   Sep 3, 2020

ISO/IEC

ISO/IEC JTC 1/SC 6 Telecommunications and information exchange between systems

International Standard

33.040.35   Telephone networks

Buying

  Published

PDF - €182.71

  English  



Buy

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO/IEC 13865:1995

NOW

PUBLISHED
ISO/IEC 13865:2003
90.60 Close of review
Sep 3, 2020

Relations

Adopted from ECMA-177