NF ETS 300564

Digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3. Supplementary services specification. Formats and coding (GSM 04.80).

Le présent document spécifie le codage des informations nécessaires à la fourniture du fonctionnement des compléments de service à la couche 3 de l'interface radio mobile. Il donne les définitions fonctionnelles et le contenu des messages pour les opérations de complément de service indépendantes d'un appel, le format général et le codage des messages utilisés pour un complément de service indépendant d'un appel, et le format et le codage des éléments d'information utilisés pour les opérations de complément de service liées à un appel, ainsi que celles indépendantes d'un appel. De plus, y est donnée la spécification des opérations de complément de service liées à un appel et indépendantes d'un appel.

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