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Private Integrated Services Network (PISN); Specification, functional models and information flows; Call dive…

Overview SIST EN 300 256 V1.3.1:2005 specifies the functional models and information flows for call diversion supplementary services in Private Integrated Services Networks (PISN). Based on the modif…

Private Integrated Services Network (PISN); Specification, functional models and information flows; Call dive…

Information technology — Telecommunications and information exchange between systems — Private Integrated Ser…

ISO/IEC 13872:2003

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Information technology — Telecommunications and information exchange between systems — Private Integrated Ser…

Overview ISO/IEC 13872:2003 defines the Call Diversion supplementary services for Private Integrated Services Networks (PISN). It specifies four services: Call Forwarding Unconditional (SS‑CFU), Call…