Integrated Services Digital Network (ISDN). Advice of charge : charging information at call set-up time (AOC-S) supplementary service. Service description
German title
INTEGRATED SERVICES DIGITAL NETWORK (ISDN). DIENSTMERKMAL. GEBUERENINFORMATION BEI AUFBAU DER VERDINGUNG. DIENSTBESCHREIBUNG
Publication date
1994-12-01
Original language
French
Pages
17
Publication date
1994-12-01
Original language
French
Pages
17
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