Resumen:
The document describes the Closed User Group (CUG) supplementary services, stage 1, at the digital cellular telecommunications system (phase 2).
Das Dokument beschreibt die Zusatzdienste für geschlossene Benutzergruppen(CUG), Stufe 1, im zellularen digitalen Funkkommunikationssystem (Phase 2).
Keywords:
Call transmission, Communication networks, Communication service, Communication systems, Conferences, Digital, ETSI, European, Global system for mobile communications, Group communication, GSM, Handlings, Land-mobile services, Limitation, Mobile radio systems, Public, Radiotelephone traffic, Special service, Supplementary services, Telecommunication, Telecommunication networks, Telecommunication systems, Telecommunications, Telephone networks, User system, Users, Wireless communication services