SIST EN 301 656 V1.1.1:2005

• Abstract:

  This European Normes (EN) specifies the signalling protocol for the su pport Call priority interruption supplementary service (SS-CPI) at the Q reference point between Private Integrated services Network eXchang es (PINX) connected together within a Private Integrated Services Netw ork (PISN.

• Status: Published
• Publication Date: 30-Apr-2005
• ICS: 33.040.35 - Telephone networks
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2005
• Due Date: 01-May-2005
• Completion Date: 01-May-2005
• Mandate: IT-74
• Ref Project: ETSI EN 301 656 V1.1.1 (1999-08) - Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call priority interruption and call priority interruption protection supplementary services; [ISO/IEC 15992 (1998), modified]

Overview

SIST EN 301 656 V1.1.1:2005 is a European standard specifying the inter-exchange signalling protocol for Private Integrated Services Networks (PISN). Developed by the Slovenian Institute for Standardization (SIST), it addresses the support of Call Priority Interruption (CPI) and Call Priority Interruption Protection (CPIP) supplementary services over the Q reference point between Private Integrated Network Exchanges (PINX) within a PISN environment. This standard aligns with ISO/IEC 15992 (1998) with specific modifications for European requirements. It serves organizations implementing private telecommunication networks who require advanced call management features for reliability and prioritization.

Key Topics

• PISN and QSIG Protocol: Focused on the implementation of QSIG - the standardized network signalling protocol for private networks - promoting compatibility and interoperability among network exchanges (PINX).
• Call Priority Interruption (CPI): Defines mechanisms for temporarily interrupting ongoing lower-priority calls to allow setup or continuation of higher-priority calls, which is critical for mission-critical communication environments.
• Call Priority Interruption Protection (CPIP): Details the protective measures to safeguard certain high-priority calls from being interrupted, ensuring uninterrupted communication for key personnel or emergency functions.
• Inter-exchange Signalling: Emphasizes the standardized signalling protocol for communication between physically separate exchanges, facilitating seamless service across distributed office locations or campus environments.
• Alignment with International Standards: The standard implements modifications to ISO/IEC 15992 references, ensuring alignment and compatibility with broader international and European telecommunication standards.

Applications

SIST EN 301 656 is relevant to organizations that operate private telecommunication environments and require robust traffic management and priority handling, such as:

• Large Enterprises and Government Agencies: Ensures essential personnel maintain uninterrupted communication during high-demand periods or emergencies.
• Healthcare Facilities and Emergency Services: Enables rapid communication for critical response teams by assigning and enforcing call priorities.
• Multi-site Corporations and Campuses: Facilitates integration of branch offices or buildings through standardized PISN interconnection, upholding service quality and call management across locations.
• Service Providers and System Integrators: Systematically implement supplementary services in PISN solutions offered to clients for advanced telephony needs.

Practical benefits include improved response times during critical incidents, reduced communication downtime, and enhanced operational control over network resources.

Related Standards

Implementing SIST EN 301 656 may involve reference and interoperability with the following key standards:

• EN 300 171: Functional models and information flows for circuit-mode basic services in PISN.
• EN 300 172: Inter-exchange signalling protocol for circuit-mode basic services.
• EN 301 265: Call interception additional network feature in PISN.
• EN 301 655: Specification and functional model for CPI and CPIP supplementary services.
• ETS 300 239: Generic functional protocol for supplementary services.
• ETS 300 261: Support for Call Transfer supplementary service.
• ETS 300 357: Diversion supplementary services protocol.
• ETS 300 475-1: Reference configuration for Private Telecommunications Network Exchanges.

Using these related standards together helps ensure a unified, standards-driven approach to private network signalling, service provision, and interconnectivity.

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Keywords: PISN, QSIG, Call Priority Interruption, Private Integrated Services Network, inter-exchange signalling, call prioritization, CPI, CPIP, PSS1, telephony standards, European Normes, SIST standard, ISO/IEC 15992, VPN.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VLJQDOL]DFLMVNL@Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call priority interruption and call priority interruption protection supplementary services; [ISO/IEC 15992 (1998), modified]33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 301 656 Version 1.1.1SIST EN 301 656 V1.1.1:2005en01-maj-2005SIST EN 301 656 V1.1.1:2005SLOVENSKI
STANDARD
ETSIETSI EN 301 656 V1.1.1 (1999-08)2ReferenceDEN/ECMA-00184 (fc000ico.PDF)KeywordsPISN, QSIG, VPN, stage 3ETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo 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 1999.All rights reserved.SIST EN 301 656 V1.1.1:2005

ETSIETSI EN 301 656 V1.1.1 (1999-08)3Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server(http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by European Computer ManufacturersAssociation (ECMA) on behalf of its members and those of the European Telecommunications Standards Institute(ETSI).The present document is one of a series of standards defining services and signalling protocols applicable to PrivateIntegrated Services Networks (PISN). The series uses the Integrated Services Digital Network (ISDN) concepts asdeveloped by ITU-T and conforms to the framework of standards for Open Systems Interconnection (OSI) as defined byISO/IEC.This particular EN specifies the Q interface Signalling protocol (QSIG) for use at the Q reference point in support of theCall Priority Interruption and Call Priority Interruption Protection Supplementary Services. The QSIG protocol isknown as "Private integrated Signalling System no.1" (PSS1) in International Standards.National transposition datesDate of adoption of this EN:13 August 1999Date of latest announcement of this EN (doa):30 November 1999Date of latest publication of new National Standardor endorsement of thi
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