ETS 300200:1994-12

Integrated Services Digital Network (ISDN) - Call Forwarding Unconditional (CFU) supplementary service - Service description

German title: Diensteintegrierendes Digitalnetz (ISDN) - Dienstmerkmal Rufweiterleitung unbedingt (CFU) - Dienstbeschreibung
Publication date: 1994-12
Original language: English
Pages: 24

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