Overview
SIST EN 301 047 V1.1.1:2005 is a European Telecommunication Standard that specifies the "Transit Counter" additional network feature (ANF-TC) for Private Integrated Services Networks (PISN). The standard, developed by the Slovenski inštitut za standardizacijo (SIST) and endorsed by the European Telecommunications Standards Institute (ETSI), aligns with ISO/IEC 15055 (1997), with select modifications to suit European requirements.
This standard facilitates the implementation of telecommunications features that enhance network management capabilities for private networks. It defines the specification, functional models, and information flows related to the transit counter within PISN environments, following the principles of Integrated Services Digital Network (ISDN) and Open Systems Interconnection (OSI).
Key Topics
- Transit Counter Feature (ANF-TC): Describes a supplemental capability for tracking and managing calls as they pass through various network segments or exchanges within a PISN.
- Functional Models: Outlines abstract models depicting the behavior and roles of network components when supporting the transit counter feature.
- Information Flows: Specifies the signaling and information exchange methods necessary for consistent operation of the transit counter among network nodes.
- Interoperability: Ensures compatibility between international and European standards by aligning references and terminology with relevant ETSI and ISO/IEC documents.
- Compliance and Modifications: Details the mechanisms for updating references from the international baseline to European standards, ensuring correct implementation within the EU context.
Applications
The specifications outlined in SIST EN 301 047 V1.1.1:2005 are critical for organizations operating large-scale or distributed Private Integrated Services Networks. Key applications include:
- Enterprise Telephony: Ensures robust call management and billing in corporate, campus, or multi-site environments by tracking transit events across internal networks.
- Network Management: Helps administrators monitor call paths and maintain service quality by reporting the number of network segments traversed.
- Support for Supplementary Services: Facilitates integration with advanced features like call transfer, diversion, and completion, enhancing the overall telecommunication infrastructure.
- Compliance and Standardization: Guarantees that implementations adhere to recognized international and European standards, supporting interoperability and future-proofing investments in network technologies.
The transit counter feature is particularly valuable for virtual private networks (VPNs), complex organizational telephone networks, and any scenario requiring accurate record-keeping of call routing for performance, security, or regulatory purposes.
Related Standards
The following standards are referenced for functional consistency and interoperability with SIST EN 301 047 V1.1.1:2005:
- ETS 300 256 (PISN; Diversion Supplementary Services): Provides specifications for call diversion features, enabling integrated supplementary services alongside the transit counter.
- ETS 300 258 (PISN; Path Replacement ANF): Addresses dynamic path replacement within private networks, complementing the transit counter's tracking of call paths.
- ETS 300 260 (PISN; Call Transfer Supplementary Service): Details requirements for call transfer functionalities, which may interact with transit counting.
- ETS 300 365 (PISN; Call Completion Supplementary Services): Supports call completion features that leverage the transit counter for detailed reporting.
- ETS 300 387 (PTN; Basic and Supplementary Services): Underpins the generalized framework for private telecommunications networks, enhancing interoperability.
- ISO/IEC 15055 (International Standard): The baseline for this EN standard, ensuring global alignment of the transit counter feature.
Conclusion
SIST EN 301 047 V1.1.1:2005 empowers network operators and enterprises to implement advanced call management and routing capabilities within their private telecommunication infrastructures. By adhering to this standard, organizations benefit from improved network efficiency, compliance, and interoperability-critical for modern telecommunications environments.
