ETSI ETS 300 771-1 ed.1 (1997-09)

SLOVENSKI STANDARD
SIST ETS 300 771-1:1998
01-september-1998
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Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling
System No. two (DSS2) protocol; B-ISDN user-network interface layer 3 specification for
point-to-multipoint call/bearer control; Part 1: Protocol specification [ITU-T
Recommendation Q.2971 (1995), modified]
Ta slovenski standard je istoveten z: ETS 300 771-1 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 771-1:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 771-1:1998

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SIST ETS 300 771-1:1998
EUROPEAN ETS 300 771-1
TELECOMMUNICATION September 1997
STANDARD
Source: SPS Reference: DE/SPS-05085-1
ICS: 33.020
Key words: B-ISDN, DSS2, UNI, layer 3, basic
Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol;
B-ISDN user-network interface layer 3
specification for point-to-multipoint call/bearer control;
Part 1: Protocol specification
[ITU-T Recommendation Q.2971 (1995), modified]
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 4 92 94 42 00 - Fax: +33 4 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 1997. All rights reserved.

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SIST ETS 300 771-1:1998
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ETS 300 771-1: September 1997
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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SIST ETS 300 771-1:1998
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ETS 300 771-1: September 1997
Foreword
This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols and
Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS is part 1 of a multi-part standard covering the specification of the Broadband Integrated Services
Digital Network (B-ISDN) user-network interface layer 3 protocol for point-to-multipoint call/bearer control
of Digital Subscriber Signalling System No. two (DSS2) as described below:
Part 1: "Protocol specification [ITU-T Recommendation Q.2971 (1995), modified]";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";
Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing
(PIXIT) proforma specification for the user";
Part 5: "TSS&TP specification for the network";
Part 6: "ATS and partial PIXIT proforma specification for the network".
NOTE: The final structure of the parts containing the test specifications is currently under
study.
Transposition dates
Date of adoption: 5 September 1997
Date of latest announcement of this ETS (doa): 31 December 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 June 1998
Date of withdrawal of any conflicting National Standard (dow): 30 June 1998
Endorsement notice
The text of ITU-T Recommendation Q.2971 (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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SIST ETS 300 771-1:1998
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ETS 300 771-1: September 1997
Page 1, clause 1
Replace clause 1 by:
1     Scope
This European Telecommunication Standard (ETS) specifies the stage three of on-demand connection-
oriented point-to-multipoint unidirectional single bearer connection Release 1 basic telecommunication
services for the pan-European Broadband Integrated Services Digital Network (B-ISDN) as provided at the
T reference point or coincident S and T reference point (as defined in ITU-T Recommendation
B B B
I.413 [2]) by means of the Digital Subscriber Signalling System No. two (DSS2) protocol. Stage three
identifies the protocol procedures and switching functions needed to support a telecommunication service
(see CCITT Recommendation I.130 [1]).
In addition, this ETS specifies the protocol requirements at the T reference point where the service is
B
provided to the user via a private B-ISDN.
NOTE:     Procedures at the T reference point, to support the access of a private B-ISDN to the
B
public B-ISDN, are not explicitly identified in this ETS, however, some procedures are
applicable only at the T reference point.
B
A basic telecommunication service is a service to which supplementary services may be added.
Further ETSs (or further parts of this ETS) provide the method of testing and detailed application specific
requirements to determine conformance to this ETS.
This ETS is applicable to equipment supporting connection-oriented point-to-multipoint single connection
basic B-ISDN telecommunication services, to be attached at either side of a T reference point or
B
coincident S and T reference points when used as an access to the public B-ISDN.
B B
The provision of this service to the leaves requires the support of the protocol for basic point-to-point
call/bearer connection as defined in ETS 300 443-1 [4].
Page 1, clause 2
Replace clause 2 by:
2     Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1]                   CCITT Recommendation I.130 (1988): "Method for the characterization of
telecommunication services supported by an ISDN and network capabilities of
an ISDN".
[2]                   ITU-T Recommendation I.413 (1993): "B-ISDN user-network interfaces".
[3]                   ETS 300 437-1: "Broadband Integrated Services Digital Network (B-ISDN);
Signalling ATM Adaptation Layer (SAAL); Service Specific Co-ordination
Function (SSCF) for support of signalling at the User-Network Interface (UNI);
Part 1: Specification of SSCF at UNI [ITU-T Recommendation Q.2130 (1995),
modified]".

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SIST ETS 300 771-1:1998
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ETS 300 771-1: September 1997
[4]                   ETS 300 443-1: "Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-
network interface layer 3 specification for basic call/bearer control; Part 1:
Protocol specification [ITU-T Recommendation Q.2931 (1995), modified]".
[5]                   ETS 300 661-1: "Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol; Direct Dialling In
(DDI) supplementary service; Part 1: Protocol specification [ITU-T
Recommendation Q.2951, clause 1 (1995), modified]".
[6]                   ETS 300 662-1: "Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol; Multiple
Subscriber Number (MSN) supplementary service; Part 1: Protocol specification
[ITU-T Recommendation Q.2951, clause 2 (1995), modified]".
[7]                   ETS 300 663-1: "Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol; Calling Line
Identification Presentation (CLIP) supplementary service; Part 1: Protocol
specification [ITU-T Recommendation Q.2951, clause 3 (1995), modified]".
[8]                   ETS 300 664-1: "Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol; Calling Line
Identification Restriction (CLIR) supplementary service; Part 1: Protocol
specification [ITU-T Recommendation Q.2
...