NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Standards [CURRENT]

ETS 300056
Integrated Services Digital Network (ISDN); Call waiting (CW) supplementary service; service description

Title (German)

ISDN; Dienstmerkmal Anklopfen; Dienstbeschreibung

Edition 1991-10
Original language English
Price On Request
Table of contents

Contact

Rudolf Brandner

Merianstr. 28
63069 Offenbach am Main

Tel.: +49 69 6308-390
Fax: +49 69 6308-9390

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