Reference number
ISO/IEC 15992:2003
International Standard
ISO/IEC 15992:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call Priority Interruption and Call Priority Interruption Protection supplementary services
Edition 2
2003-04
Preview
ISO/IEC 15992:2003
36857
Indisponible en français
Publiée (Edition 2, 2003)
Cette publication a été révisée et confirmée pour la dernière fois en 2015. Cette édition reste donc d’actualité.

ISO/IEC 15992:2003

ISO/IEC 15992:2003
36857
Langue
Format
CHF 173
Convertir les francs suisses (CHF) dans une autre devise
La version électronique de cette Norme internationale peut être téléchargée à partir du site Web du Groupe de travail ISO/CEI sur les technologies de l'information (ITTF)

Résumé

ISO/IEC 15992:2003 specifies the signalling protocol for the support of the Call Priority Interruption (SS-CPI) and Call Priority Interruption Protection (SS-CPIP) supplementary services at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN).

NOTE This edition of ISO/IEC 15992:2003 does not apply to calls using the circuit-mode multiple rate bearer service.

SS-CPI allows a call request for a priority call to proceed successfully in the case that there is no user information channel available. This is accomplished by force releasing an established call of lower priority.

SS-CPIP allows for the protection of calls against interruption from priority calls.

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. ISO/IEC 15992:2003 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 15991.

The signalling protocol for SS-CPI(P) 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 15992:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-CPI(P) and other supplementary services and ANFs.

Informations générales

  •  : Publiée
     : 2003-04
    : Clôture de l'examen [90.60]
  •  : 2
  • ISO/IEC JTC 1/SC 6
    33.040.35 
  • RSS mises à jour

Cycle de vie

Vous avez une question?

Consulter notre Aide et assistance