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Dear Customer,

This year, on the occasion of our 100th anniversary, we will be positioning ourselves for the future as part of the DIN Group with a new name. 

And so as of April 22, 2024

Beuth Verlag will become DIN Media. 

You can find out more about our new name and the reasons behind it here.

Yours sincerely,
Beuth Verlag

Standards Worldwide
Standards Worldwide
Phone +49 30 58885700-07

Standard [CURRENT]

NF Z85-356-17:1997-07-01

NF ETS 300356-17:1997-07-01

Integrated Services Digital Network (ISDN). Signalling System number 7 ISDN User Part (ISUP) version 2 for the international interface. Part 17: Call Waiting (CW) supplementary service

German title
ISDN. CCITT-ZEICHENGABESYSTEM NUMMER 7. ISDN-NUTZERTEIL (ISUP) VERSION 2 FUER DIE INTERNATIONALE SCHNITTSTELLE. TEIL 17: DIENSTMERKMAL "ANKLOPFEN"
Publication date
1997-07-01
Original language
French
Pages
8

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Standards Ticker 1
1

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Publication date
1997-07-01
Original language
French
Pages
8

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