Dear Customers,

We will be on our Christmas break from 23 December 2025 at 1:00 p.m. and will be available again from 5 January 2026.
Please note that new registrations and requests requiring manual processing will only be handled from this date onwards.

You may, of course, place orders and access downloads online at any time.

We wish you happy holidays, a restful break, and a healthy start to the New Year!

Your DIN Media

Integrated Service Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User part (ISUP) version 4 for the international interface - Part 20: Completion of Calls on No Reply (CCNR) supplementary service (ITU-T Recommendation Q.733, clause 5 (1999), modified) (Endorsement of the English version EN 300356-20 V 4.3.1 (2001-07) as German standard)

Standard [CURRENT]

DIN EN 300356-20:2002-01

Integrated Service Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User part (ISUP) version 4 for the international interface - Part 20: Completion of Calls on No Reply (CCNR) supplementary service (ITU-T Recommendation Q.733, clause 5 (1999), modified) (Endorsement of the English version EN 300356-20 V 4.3.1 (2001-07) as German standard)

German title
ISDN - Zeichengabesystem Nr. 7 (SS7); ISDN-Anwenderteil (ISUP) Version 4 für die internationale Schnittstelle - Teil 20: Dienstmerkmal "Rückruf bei Nichtmelden des gerufenen Nutzers" (ITU-T-Empfehlung Q.733, Abschnitt 5 (1999), modifiziert) (Anerkennung der Englischen Fassung EN 300356-20 V 4.3.1 (2001-07) als Deutsche Norm)
Publication date
2002-01
Original language
German
Pages
1

from 17.10 EUR VAT included

from 15.98 EUR VAT excluded

Format and language options

PDF download

  • 17.10 EUR

Shipment (3-5 working days)

  • 21.30 EUR

Monitor with the Standards Ticker

This option is only available after login.
1

Endorsement notice without the reference document

Easily subscribe: Save time and money now!

You can also subscribe to this document - together with other important standards in your industry. This makes your work easier and pays for itself after a short time.

Sparschwein_data
Subscription advantages
Sparschwein Vorteil 1_data

Important standards for your industry, regularly updated

Sparschwein Vorteil 2_data

Much cheaper than buying individually

Sparschwein Vorteil 3_data

Useful functions: Filters, version comparison and more

Publication date
2002-01
Original language
German
Pages
1
DOI
https://dx.doi.org/10.31030/9231523

Product information on this site:

Quick delivery via download or delivery service

Buy securely with a credit card or pay upon receipt of invoice

All transactions are encrypted

ICS

33.080

DOI

https://dx.doi.org/10.31030/9231523
Replacement amendments

This document replaces DIN EN 300356-20:2000-09 .

Cooperation at DIN

Loading recommended items...
Loading recommended items...
Loading recommended items...
Loading recommended items...