Overview
SIST EN 302 037 V1.1.1:2005 is a Slovenian national standard that endorses and modifies ISO/IEC 23290:2002, focusing on Private Integrated Services Networks (PISN). The standard specifies mapping functions for tunnelling QSIG signalling protocol through H.323 packet-switched networks, enabling two or more PISN exchanges (PINXs) to interconnect using on-demand virtual private network (VPN) connections over H.323-based infrastructure. This process allows traditional telephony features and services carried by QSIG to be retained over modern, packet-based networks.
Keywords: PISN, QSIG, H.323, mapping functions, tunnelling, network interconnection, VPN, telecommunication standard
Key Topics
- Private Integrated Services Network (PISN): Defines a private telecommunication network offering services similar to those in public ISDN, tailored for organizations’ internal communications.
- QSIG Signalling Protocol: A widely used protocol for inter-PINX signalling in PISNs, supporting both basic and supplementary services.
- H.323 Packet Networks: A standard for voice, video, and data communication over packet-switched networks (such as IP), commonly used for VoIP and conferencing services.
- Mapping and Tunnelling Functions: Specifies how QSIG signalling messages are encapsulated within H.323 protocols, allowing PINXs to communicate seamlessly through a packet-switched core.
- On-demand VPN Connections: Supports dynamic establishment of secure, virtual connections between PINXs using public or private H.323 networks as the VPN medium.
Applications
Implementing SIST EN 302 037 V1.1.1:2005 provides significant practical benefits for organizations seeking to modernize their telephony infrastructure while preserving existing investments in PISN technology.
- Enterprise Telephony Migration: Facilitates smooth migration from circuit-based PISN networks to IP-based packet networks without losing QSIG-based services.
- Geographically Distributed Offices: Enables secure, feature-rich voice and data communications between remote offices connected via public or private IP networks using H.323.
- Unified Communications Integration: Supports integration with VoIP services, video conferencing, and other unified communications platforms by leveraging H.323 compatibility.
- Cost and Infrastructure Efficiency: Reduces the need for dedicated leased lines between sites by using cost-effective, bandwidth-optimized packet networks.
- Interoperability: Ensures compatibility between equipment from different vendors by conforming to international standards for PISN and H.323 networking.
Related Standards
- ISO/IEC 23290:2002: The international base standard for mapping functions for QSIG tunnelling through H.323 networks.
- ETSI EN 300 172: Defines circuit-mode basic services and protocols for PISN inter-exchange signalling, based on ISO/IEC 11572.
- ETSI ETS 300 475-1: Details PISN reference configurations, drawing from ISO/IEC 11579-1.
- ETSI ETS 300 239: Covers generic functional protocols for supplementary services support in PISNs, based on ISO/IEC 11582.
SIST EN 302 037 V1.1.1:2005 ensures national coherence with European and international standards, making it essential for organizations and service providers aiming to maintain advanced telecommunication features over modern, IP-based infrastructures. For further information and authoritative versions, consult the official documentation from SIST or ETSI.
