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NA 022

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

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Technical rule [CURRENT]

ETR 206
Public Switched Telephone Network (PSTN) - Multifrequency signalling system to be used for push-button telephones (CEPT T/CS 46-02 E-1985)

Edition 1995-09
Original language English
Price On Request
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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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