Reference number
ISO/IEC 15051:2003
© ISO 2024
International Standard
ISO/IEC 15051:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Recall supplementary service
Edition 2
2003-04
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Publicado (Edición 2, 2003)
Esta publicación se revisó y confirmó por última vez en 2017. Por lo tanto, esta versión es la actual.

ISO/IEC 15051:2003

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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

Resumen

ISO/IEC 15051:2003 specifies supplementary service Recall (SS-RE), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574.

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

Service specifications are produced in three stages, according to the method described in ETS 300 387. ISO/IEC 15051:2003 contains the stage 1 and stage 2 specifications of SS-RE. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) identifies the functional entities involved in the supplementary service and the information flows between them.

Informaciones generales

  • Estado
     : Publicado
    Fecha de publicación
     : 2003-04
    Etapa
    : Cierre de la revisión [90.60]
  • Edición
     : 2
    Número de páginas
     : 14
  • Comité Técnico :
    ISO/IEC JTC 1/SC 6
    ICS :
    33.040.35 
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