NF ETS 300121

Integrated Services Digital Network (ISDN). Application of the ISDN user part (isup) of CCITT signalling system number 7 for international ISDN interconnections (isup version 1).

Le présent document précise les services support, les téléservices et les compléments de service applicables dans le cadre de la signalisation d''usager pour l''interconnexion internationale des réseaux numériques à intégration de services (RNIS) définie dans la Recommandation Q.967 du CCITT.

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