Reference number
ISO/IEC 15052:2003
© ISO 2024
International Standard
ISO/IEC 15052:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Recall supplementary service
Edition 2
2003-04
Preview
недоступно на русском языке
Опубликовано (Версия 2, 2003)
Последний раз этот публикация был пересмотрен в  2015. Поэтому данная версия остается актуальной.

ISO/IEC 15052:2003

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The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site

Тезис

ISO/IEC 15052:2003 specifies the signalling protocol for the support of Recall supplementary service (SS-RE) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within Private Integrated Services Network (PISN).

SS-RE is a supplementary service which provides for the re-direction of a transferred call back to the served user if the call is unanswered. SS-RE is only applicable after transfer by join, not after transfer by rerouteing.

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 ETS 300 387. This International Standard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 15051.

The signalling protocol for SS-RE 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.

ISO/IEC 15052:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-RE and other supplementary services and ANFs. However, the interaction with the Call Transfer supplementary service is specified as part of SS-RE signalling procedures as it is the essential aspect of the Recall supplementary service.

NOTE Additional interactions that have no impact on the signalling protocol at the Q reference point can be found in the relevant stage 1 specifications.

ISO/IEC 15052:2003 is applicable to PINXs which can be interconnected to form a PISN.

Общая информация

  • Текущий статус
     : Опубликовано
    Дата публикации
     : 2003-04
    Этап
    : Рассылка краткого отчета о пересмотре [90.60]
  • Версия
     : 2
  • Технический комитет :
    ISO/IEC JTC 1/SC 6
    ICS :
    33.040.35 
  • RSS обновления

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9
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