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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]

TBR 21 ; TBR 021:1998-01
Terminal Equipment (TE) - Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTNs) of TE (excluding TE supporting the voice telephony service) in which network addressing, if provided, is by means of Dual Tone Multi Frequency (DTMF) signalling

Edition 1998-01
Original language English
Price On Request
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Dipl.-Ing.

Michael Teigeler

Merianstr. 28
63069 Offenbach am Main

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

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