Overview
SIST ETS 300 366 E2:2005 specifies the signaling protocol required to support call completion supplementary services within a Private Integrated Services Network (PISN). The standard defines the protocol at the Q reference point between Private Telecommunication Network eXchanges (PTNX), facilitating interoperability and efficiency in private telecommunication networks. It is based on the internationally recognized ISO/IEC 13870 (1995), with modifications to suit European telecommunication requirements.
This standard focuses on enabling two essential call completion services:
- Call Completion on Busy Subscriber (SS-CCBS)
- Call Completion on No Reply (SS-CCNR)
By standardizing inter-exchange communication, SIST ETS 300 366 E2:2005 helps organizations manage calls more effectively within their private networks.
Key Topics
Call Completion Supplementary Services
- SS-CCBS (Call Completion on Busy Subscriber):
Allows a calling party to request automatic call completion when a called party is busy. The system will attempt to connect the call when the called user becomes available.
- SS-CCNR (Call Completion on No Reply):
Enables the calling party to receive call completion services when the called user does not answer. A call attempt is re-initiated automatically once the user is available.
Inter-exchange Signalling Protocol
- Based on QSIG (Private integrated Signalling System no. 1 - PSS1), the protocol supports robust interoperability between PTNXs.
- Operates at the Q reference point to ensure standardized signaling exchange within Private Telecommunication Networks (PTN).
Modifications to ISO/IEC 13870 (1995):
- Integration with European standards and alignment with ETSI requirements.
- Adoption of terminology and references relevant for European contexts.
Applications
SIST ETS 300 366 E2:2005 is crucial for organizations deploying Private Integrated Services Networks where seamless call management and productivity are essential. Key application areas include:
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Enterprise Communication Systems:
Ensures efficient handling of internal calls, reducing missed opportunities due to busy lines or unanswered calls.
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Large Corporate Campuses and Multi-Site Organizations:
Facilitates a unified telecommunication environment across various locations, leveraging consistent inter-exchange signaling.
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Call Centers and Support Services:
Improves customer service by reducing waiting times and ensuring calls are automatically retried without manual intervention.
Benefits include:
- Enhanced user experience through minimized call handling delays
- Increased network efficiency and call success rates
- Simplified integration of new exchanges and devices within private networks
Related Standards
For comprehensive PISN implementation and interoperability, organizations should reference these related standards:
- ETS 300 171: Private Telecommunication Network; Specification, functional models, and information flows for circuit mode basic services
- ETS 300 172: Inter-exchange signalling protocol Circuit-mode basic services (3rd edition)
- ETS 300 239: Generic functional protocol for the support of supplementary services
- ETS 300 257: Diversion supplementary services protocol
- ETS 300 365: Specification, functional models, and information flows for call completion supplementary service
- ETS 300 387: Method for the specification of basic and supplementary services
- ETS 300 475-1: Reference configuration for PISN exchanges (PINXs)
These standards, alongside SIST ETS 300 366 E2:2005, ensure reliable, interoperable, and scalable communication solutions in private integrated networks.
Keywords: Private Integrated Services Network, PISN, Call Completion Supplementary Services, SS-CCBS, SS-CCNR, Inter-exchange Signalling Protocol, QSIG, PTNX, ETSI, ISO/IEC 13870, Private Telecommunication Network, PTN.