New presentation - see History box
EUROPEAN
ETS 300 121
TELECOMMUNICATION
December 1992
STANDARD
Source: ETSI TC-SPS
Reference: T/S 43-14
ICS: 33.080
Key words: ISDN, ISUP
Integrated Services Digital Network (ISDN);
Application of the ISDN User Part (ISUP) of CCITT Signalling
System No. 7 for international ISDN interconnections
(ISUP version 1)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1992. All rights reserved.
Page 2
ETS 300 121: December 1992
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
Page 3
ETS 300 121: December 1992
Contents
Foreword .......................................................................................................................................................5
1
Scope ..................................................................................................................................................7
History............................................................................................................................................................9
Page 4
ETS 300 121: December 1992
Blank page
Page 5
ETS 300 121: December 1992
Foreword
This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols &
Switching (SPS) technical committee of the European Telecommunications Standards Institute (