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.
Preview
Informaciones generales
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Estado: PublicadoFecha de publicación: 2003-04Etapa: Cierre de la revisión [90.60]
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Edición: 2Número de páginas: 14
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Comité Técnico :ISO/IEC JTC 1/SC 6ICS :33.040.35
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Ciclo de vida
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Anteriormente
RetiradaISO/IEC 15051:1997
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Ahora
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