SIST ETS 300 257 E2:2005

SLOVENSKI STANDARD
SIST ETS 300 257 E2:2005
01-maj-2005
Zasebno omrežje z integriranimi storitvami (PISN) - Medcentralni signalizacijski
protokol - Dopolnilna storitev: izsmeritev klica [ISO/IEC 13873 (1995), spremenjen]
Private Integrated Services Network (PISN); Inter-exchange signalling protocol;
Diversion supplementary services [ISO/IEC 13873 (1995) modified]
Ta slovenski standard je istoveten z: ETS 300 257 Edition 2
ICS:
33.040.35 Telefonska omrežja Telephone networks
SIST ETS 300 257 E2:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 257 E2:2005

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SIST ETS 300 257 E2:2005
EUROPEAN ETS 300 257
TELECOMMUNICATION November 1995
STANDARD Second Edition
Source: ETSI TC-ECMA Reference: RE/ECMA-00120
ICS: 33.020
PISN, PSS1, PTN, QSIG
Key words:
Private Integrated Services Network (PISN);
Inter-exchange signalling protocol;
Diversion supplementary services
[ISO/IEC 13873 (1995) modified]
ETSI
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
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 1995. All rights reserved.
New presentation - see History box

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ETS 300 257: November 1995
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.

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ETS 300 257: November 1995
Foreword
This second edition European Telecommunication Standard (ETS) has been produced by the
Communication, Networks, and Systems Interconnection Technical Committee (TC32) of ECMA on behalf
of its members and those of the European Telecommunications Standards Institute (ETSI).
This ETS is one of a series of standards defining services and signalling protocols applicable to Private
Integrated Services Networks (PISN). The series uses the Integrated Services Digital Network (ISDN)
concepts as developed by ITU-T and conforms to the framework of standards for Open Systems
Interconnection (OSI) as defined by ISO/IEC.
This particular ETS specifies the QSIG protocol for use at the Q reference point in support of the
Diversion supplementary services. The QSIG protocol is known as "Private integrated Signalling System
no. 1" (PSS1) in International Standards.
The Diversion supplementary services are:
- Call Forwarding Unconditional (SS-CFU);
- Call Forwarding Busy (SS-CFB);
- Call Forwarding No Reply (SS-CFNR); and
- Call Deflection (SS-CD).
The previous (first) edition of this ETS contained a "standalone" definition of the protocol. This edition
endorses an International Standard, ISO/IEC 13873, published since the publication of the first edition of
this ETS.
Transposition dates
Date of adoption of this ETS: 30 November 1995
Date of latest announcement of this ETS (doa): 28 February 1996
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 August 1996
Date of withdrawal of any conflicting National Standard (dow): 31 August 1996
Endorsement notice
The text of International Standard ISO/IEC 13873 (1995) was approved by ETSI as an ETS with agreed
modifications as given below.
NOTE: New or modified text is indicated using sidebars. In addition, underlining and/or strike-
out are used to highlight detailed modifications where necessary.

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ETS 300 257: November 1995
Clause 3
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