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Technical rule [CURRENT]

ETR 001
Integrated Services Digital Network (ISDN); customer access maintenance

Title (German)

Diensteintegrierendes digitales Fernmeldenetz (ISDN); Wartung des Teilnehmeranschlusses

Edition 1990-08
Original language English
Price On Request
Table of contents

Contact

Dipl.-Ing.

Michael Teigeler

Merianstr. 28
63069 Offenbach am Main

Tel.: +49 69 6308-260
Fax: +49 69 6308-9332

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