SIST ETS 300 660:1998
(Main)Integrated Services Digital Network (ISDN); Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an ISDN environment; Specification of SCF [ITU-T Recommendation Q.923 (1995), modified]
General Information
- Abstract
Specification of a function to co-ordinate the control and the user plane at the user side of an ISDN access, based on service primitives of sub-networks (at upper boundaries of C- and U-plane). The SCF provides the OSI Network Service
- Status
- Published
- Publication Date
- 31-Aug-1998
- Technical Committee
- SPS - Signalling protocols and switching
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Sep-1998
- Due Date
- 01-Sep-1998
- Completion Date
- 01-Sep-1998
Overview
SIST ETS 300 660:1998 is a Slovenian standard specifying the Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an Integrated Services Digital Network (ISDN) environment. Based on the modified ITU-T Recommendation Q.923 (1995), this standard defines procedures that synchronize and coordinate the control and user planes on the user side of ISDN access, enabling consistent service delivery according to OSI network service principles. Developed by the European Telecommunications Standards Institute (ETSI) and adopted as a Slovenian national standard, it is essential for manufacturers, operators, and integrators working with digital networks and OSI-based protocols in ISDN.
Keywords: ISDN standard, OSI Connection-mode Network Service, Synchronization and Co-ordination Function, SCF, digital network protocols, ETSI, Q.923, telecommunications standards
Key Topics
- SCF Role and Scope: Specifies the SCF entity responsible for managing synchronization and coordination at the boundary between the control (C-plane), user (U-plane), or management (M-plane) within ISDN, specifically on the user side.
- OSI Compliance: Ensures that connection-mode network services are provided according to OSI principles (ISO/OSI model), based on CCITT Recommendation X.213.
- Protocol Reference: Aligns with the ISDN protocol reference model (CCITT Recommendation I.320) and integrates relevant primitives and service definitions per the OSI stack.
- Service Provisions: Designed to operate with both switched virtual circuits and permanent virtual circuits in a pan-European ISDN or B-ISDN environment.
- Boundary Functions: Defines how network primitives operate at upper boundaries of control and user planes, focusing on consistent synchronization across network connections.
Applications
The practical value of SIST ETS 300 660:1998 lies in its ability to provide clear and standardized guidelines for:
- Equipment Manufacturers: Ensuring interoperability of ISDN devices and systems by adhering to SCF implementation as described in this standard. Devices interfacing with public ISDN networks must recognize SCF requirements to maintain seamless service.
- Telecommunication Operators: Applying a consistent approach for coordinating user and control planes enhances reliability and compatibility within ISDN access offerings, reducing integration issues and simplifying maintenance.
- System Integrators: Facilitating the development and rollout of digital networks that require robust OSI-compliant connection-mode network services. The standard helps in integrating multi-vendor equipment within a single ISDN ecosystem.
- Standard-compliant Solutions: Supporting the delivery of OSI CONS in ISDN environments across Europe, enabling organizations to build advanced digital communication services on a unified, standardized foundation.
Related Standards
Organizations implementing SIST ETS 300 660:1998 should also consider the following related standards for comprehensive compliance and interoperability:
- ITU-T Recommendation Q.923: Fundamental specification for ISDN user-network interface layer 2 protocols. SIST ETS 300 660:1998 is based on a modified version of this recommendation.
- CCITT Recommendation X.213: Defines the network service for Open Systems Interconnection, referenced for network service compliance.
- CCITT Recommendation I.320: Describes the ISDN protocol reference model, providing context for SCF integration.
- Other ISDN and OSI Standards: ICS 33.080 (ISDN standards) and ICS 35.100.30 (Network layer standards) for a holistic approach to digital network interoperability.
By conforming to these related standards alongside SIST ETS 300 660:1998, organizations can ensure robust, interoperable, and future-proof ISDN network solutions that support comprehensive digital services based on international best practices.
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Frequently Asked Questions
SIST ETS 300 660:1998 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Integrated Services Digital Network (ISDN); Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an ISDN environment; Specification of SCF [ITU-T Recommendation Q.923 (1995), modified]". This standard covers: Specification of a function to co-ordinate the control and the user plane at the user side of an ISDN access, based on service primitives of sub-networks (at upper boundaries of C- and U-plane). The SCF provides the OSI Network Service
Specification of a function to co-ordinate the control and the user plane at the user side of an ISDN access, based on service primitives of sub-networks (at upper boundaries of C- and U-plane). The SCF provides the OSI Network Service
SIST ETS 300 660:1998 is classified under the following ICS (International Classification for Standards) categories: 33.080 - Integrated Services Digital Network (ISDN); 35.100.30 - Network layer. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST ETS 300 660:1998 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-1998
'LJLWDOQRRPUHåMH]LQWHJULUDQLPLVWRULWYDPL ,6'1 6LQKURQL]DFLMVNDLQ
XVNODMHYDOQDIXQNFLMD 6&) ]D]DJRWRYLWHYSRYH]DYQHRPUHåQHVWRULWYH26, 26,
&216 YRNROMX,6'16SHFLILNDFLMD6&) SUHREOLNRYDQRSULSRURþLOR,7874
Integrated Services Digital Network (ISDN); Synchronization and Co-ordination Function
(SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an
ISDN environment; Specification of SCF [ITU-T Recommendation Q.923 (1995),
modified]
Ta slovenski standard je istoveten z: ETS 300 660 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
35.100.30 Omrežni sloj Network layer
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN ETS 300 660
TELECOMMUNICATION August 1996
STANDARD
Source: ETSI TC-SPS Reference: DE/SPS-05099
ICS: 33.080, 35.100.30
Key words: ISDN, B-ISDN, OSI, network, service
Integrated Services Digital Network (ISDN);
Synchronization and Co-ordination Function (SCF) for the
provision of the OSI Connection-mode Network Service
(OSI CONS) in an ISDN environment;
Specification of SCF
[ITU-T Recommendation Q.923 (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 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 1996. All rights reserved.
Page 2
ETS 300 660: August 1996
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 covers the Synchronization and Co-ordination Function which provides for the OSI
Connection-mode Network Service (OSI CONS) according to CCITT Recommendation X.213 [2] in a
Control- and User-plane, or Management- and User-plane, as appropriate, ISDN environment. The SCF
specified in this ETS is to be implemented in end systems conforming to OSI principles for connection to
the pan-European Narrowband or Broadband Integrated Services Digital Network (N-ISDN/B-ISDN) as
provided by European Public Telecommunications Operators.
Since the function specified in this ETS only co-ordinates other protocol entities in an ISDN User- and
Control-plane ISDN arrangement, or User- and Management-plane ISDN arrangement, as appropriate, it
is not a self-contained protocol machine which implements Protocol Data Units (PDUs) and is accessible
from outside of a system. Therefore, standardization of:
- Protocol Implementation Conformance Statement (PICS) proforma;
- Test Suite Structure (TSS) and Test Purposes (TP);
- Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma,
is not appropriate.
Transposition dates
Date of adoption of this ETS: 16 August 1996
Date of latest announcement of this ETS (doa): 30 November 1996
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 May 1997
Date of withdrawal of any conflicting National Standard (dow): 31 May 1997
Endorsement notice
The text of ITU-T Recommendation Q.923 (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.
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 300 660: August 1996
Page 1
Add the following three clauses (Scope, Normative references, Definitions) at the start of the text:
Scope
This European Telecommunication Standard (ETS) specifies the Synchronization and Co-ordination
Function (SCF) which provides for the OSI Connection-mode Network Service according to CCITT
Recommendation X.213 [2] in a Control- and User-plane, or Management- and User-plane, as
appropriate, ISDN environment. The SCF specified in this ETS is to be implemented in endsystems
conforming to OSI principles for connection to the pan-European Narrowband or Broadband Integrated
Services Digital Network (N-ISDN/B-ISDN) as provided by European Public Telecommunications
Operators.
The SCF is identified in the protocol reference model according to CCITT Recommendation I.320 [1].
The SCF for the provision of the OSI Connection-mode Network Service is specified in terms of the
interrelationship between Network primitives at its upper and lower boundaries. The SCF performs the
synchronization between C-plane, or M-plane if appropriate, and U-plane on a per network connection
basis and is not concerned with any functionality which is required, if multiplexing within U-plane
underlying layers is used.
This ETS is applicable to an ISDN customer access using an ISDN access signalling system such as the
Digital Subscriber Signalling System No. one (DSS1) protocol within the C-plane for the provision of a
Switched Virtual Circuit (SVC), and Permanent Virtual Circuit (PVC) arrangements. It does not require a
particular protocol within the U-plane, but rather relies on Service Data Units (SDUs) to be exchanged
between the SCF as service user and the U-plane as service provider.
This ETS is applicable to equipment conforming to OSI principles to be attached at the user side of
N-ISDN, or B-ISDN, as appropriate, User-Network Interface (UNI).
Normative references
This ETS incorporates by dated or 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.320 (1988): "ISDN protocol reference
...