Overview
SIST EN 301 264 V1.1.1:2005 defines the inter-exchange signalling protocol for supporting the Advice of Charge (AoC) supplementary service within Private Integrated Services Networks (PISN). Developed by SIST and harmonized with ETSI and ISO/IEC standards, this standard specifies the protocol required at the Q reference point for networks implementing the QSIG protocol (also referred to as Private integrated Signalling System no. 1, or PSS1). The aim is to facilitate accurate and consistent communication of charge information between network exchanges, enhancing transparency and enabling effective management of telecommunications costs.
Key Topics
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Private Integrated Services Network (PISN):
- Focuses on enterprise/private networks similar to the public Integrated Services Digital Network (ISDN).
- PISN systems often support complex call handling and supplementary services for enterprise environments.
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Advice of Charge (AoC) Supplementary Service:
- Provides users with charge-related information for telecommunications services.
- Supports both real-time cost indication during a call and overall service cost reports.
- Enables businesses to track, manage, and allocate telecommunications expenses effectively.
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QSIG Protocol at Q Reference Point:
- Ensures interoperability between different PISN exchanges.
- Standardizes the format and signaling procedures for AoC data.
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Stage 3 Specification:
- Covers the detailed signaling protocol and message exchange required to implement AoC.
- Aligns with Open Systems Interconnection (OSI) concepts and ISDN-derived service frameworks.
Applications
Implementing SIST EN 301 264 V1.1.1:2005 offers several practical benefits across enterprise and telecommunication sectors:
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Cost Management:
Organizations can obtain detailed charge information, empowering them to monitor and control telecommunications expenditure.
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Billing Transparency:
Service providers and end-users gain access to precise cost data, improving customer satisfaction and facilitating accurate billing processes.
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Network Interoperability:
Ensures that different PISN systems, potentially from multiple vendors, can exchange AoC information seamlessly.
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Enhanced Service Offerings:
Supports the provision of advanced telephony services within private networks, such as call accounting, cost reporting, and departmental billing.
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Policy Compliance:
Organizations meet regulatory or internal compliance requirements regarding telecommunications cost accountability and reporting.
Related Standards
SIST EN 301 264 V1.1.1:2005 references and aligns with various international and European standards to ensure consistency and interoperability, including:
- EN 300 171: PISN specification, functional models, and information flows for circuit-mode basic services.
- EN 300 172: PISN inter-exchange signalling protocol for circuit-mode basic services.
- ETS 300 239: Generic functional protocol supporting supplementary services in PISN.
- ETS 300 257: PISN signaling for diversion supplementary services.
- EN 301 254: PISN specification, functional models, and information flows for Advice of Charge supplementary services.
- EN 301 265: PISN inter-exchange signalling protocol for call interception features.
For complete service descriptions, see DTR/ECMA-0002 (ECMA-TR/SVC). The definitions for Stage 3 and Q reference point are detailed in ENV41005 and ENV41004, respectively.
By specifying clear, interoperable signaling protocols for Advice of Charge in PISN systems, SIST EN 301 264 V1.1.1:2005 supports advanced telecommunication management and transparent cost control within private networks, enhancing both operational efficiency and user experience.
