Overview
SIST EN 301 906 V1.1.1:2005 is a Slovenian standard, fully aligned with EN 301 906 V1.1.1, that outlines requirements for signalling interworking between QSIG and H.323 protocols in corporate telecommunication networks (CN). The standard specifically addresses call diversion supplementary services, building on the framework of ISO/IEC 21411 (2001) with certain modifications. By standardizing the interoperability between traditional Private Integrated Services Network (PISN, leveraging QSIG protocols) and IP-based corporate networks (using H.323), this document enables seamless telecommunication service integration within and across organizational boundaries.
Key Topics
- QSIG and H.323 Signalling Interworking: Defines the technical specifications for allowing QSIG-based and H.323-based systems to coexist and exchange signalling information, ensuring smooth call handling and network interoperability.
- Call Diversion Supplementary Services: Focuses on supplementary services where incoming calls can be redirected (e.g., call forwarding, unconditional or on-busy/no-answer), guaranteeing business continuity and enhanced user experience.
- Private Integrated Services Networks (PISN): Utilizes ISDN concepts and standards for inter-exchange signalling, tailored for corporate environments.
- Reference and Framework Alignment: The standard incorporates key references from the ISO/IEC and ETSI, ensuring compatibility with other widely adopted standards and making it highly relevant in the European and international telecommunications sector.
- Standards Adoption and Endorsement: Represents the Slovenian adoption of ISO/IEC 21411, updating references and integrating relevant European Telecommunication Standards Institute (ETSI) documents.
Applications
SIST EN 301 906 V1.1.1:2005 is critical for organizations and solution providers involved in:
- Corporate Network Integration: Facilitating seamless communication between legacy circuit-switched PBX (QSIG) and modern packet-based (H.323) VoIP systems.
- Multinational Enterprises: Supporting environments where geographically dispersed offices utilize different telecommunication infrastructures, enabling unified call diversion services.
- PBX Manufacturers and System Integrators: Providing a framework for developing, testing, and certifying network components and gateways that ensure interoperability and guarantee reliable supplementary services.
- Telecommunications Upgrade Projects: Enables phased migration from traditional telephony to IP-based systems by ensuring interoperability during integration and transition phases.
- Service Providers: Assisting telcos and managed service providers in supporting a broad customer base with mixed equipment, ensuring standardized supplementary service availability.
Related Standards
This standard is part of an ecosystem of related standards, ensuring a comprehensive and interoperable telecommunication environment:
- ETSI EN 300 172: Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Circuit-mode basic services.
- ETSI ETS 300 475-1: Reference configuration for Private Telecommunication Network exchanges.
- ETSI ETS 300 239: PISN Inter-exchange signalling protocol for supplementary services.
- ETSI ETS 300 257: Diversion supplementary services for PISN.
- ETSI TS 101 905: Generic functional protocol for supplementary service support between QSIG and H.323.
Adherence to these standards ensures a robust, interoperable, and future-proof telecommunication infrastructure for enterprise networks.
Keywords: corporate telecommunication networks, QSIG, H.323, call diversion, signalling interworking, PISN, VoIP interoperability, supplementary services, standards compliance, ISO/IEC 21411, ETSI.