Overview
SIST EN 301 257 V1.2.1:2005 establishes the specification, functional models, and information flows for the Recall supplementary service within Private Integrated Services Networks (PISN). This standard, endorsed by the Slovenski inštitut za standardizacijo (SIST), adopts and modifies the international baseline ISO/IEC 15051:2003 to fit the European context, supporting the integration and interoperability of supplementary telecommunications services. It plays a key role in aligning PISN functionalities with global practices, ensuring streamlined implementation and compatibility in private telephony and digital network systems.
Key Topics
- Private Integrated Services Network (PISN):
- PISN supports communication within private organizations, offering integrated voice and data services similar to public ISDN but tailored for closed groups.
- Recall Supplementary Service:
- Specifies mechanisms and flows for recalling a previous call or connection within PISN, ensuring enhanced call management and user experience.
- Functional Models and Information Flows:
- Details models and signaling required for efficient operation of the recall service, facilitating standardized communication between network components.
- Alignment with International and European Standards:
- Adopts ISO/IEC 15051:2003, integrating modifications that ensure relevance to European contexts and compatibility with EN 301 257 guidelines.
- Normative References and Compatibility:
- Establishes references to related standards, ensuring interoperability within broader PISN and private telecommunication networks.
Applications
SIST EN 301 257 V1.2.1:2005 is valuable in a range of professional telecommunication environments that utilize private integrated voice and data networks:
- Corporate and Enterprise Telephony
- Ensures reliable recall functionality for business users, improving call control and productivity within organizations.
- Virtual Private Network (VPN) Solutions
- Supports advanced supplementary services, enhancing internal network flexibility and security.
- Private Telecommunication Network Management
- Guides vendors and service providers in designing, deploying, and maintaining PISN systems with standardized supplementary service behavior.
- Interoperable Equipment Development
- Assists manufacturers in creating compliant hardware and software for PISNs, facilitating seamless integration and future upgrades.
By following this standard, organizations can ensure that their internal communication systems support recall functionalities that are globally recognized and interoperable, reducing risk and operational complexity.
Related Standards
For comprehensive network design and compliance, the following standards are frequently referenced or required alongside SIST EN 301 257 V1.2.1:2005:
- EN 300 171
- Defines PISN service descriptions and circuit-mode 64 kbit/s bearer services, aligning with ISO/IEC 11574.
- ETS 300 475-1
- Provides reference configurations for Private Telecommunication Network exchanges, based on ISO/IEC 11579-1.
- EN 300 260
- Covers call transfer supplementary service specifications, referencing ISO/IEC 13865.
- ISO/IEC 15051:2003
- The foundational international standard for recall supplementary services, forming the basis of this European adoption.
Implementing SIST EN 301 257 V1.2.1:2005 ensures compatibility, operational effectiveness, and global alignment for organizations deploying PISN recall supplementary services in modern telecommunication networks.