Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Generic functional protocol for the support of supplementary services - Inter-exchange signalling procedures and protocol
The international community has decided to make this standard available only in
the English language version. It has been adopted as a National Standard of
Canada on this basis. This National Standard of Canada is equivalent to International Standard
ISO/IEC 11582:1995. 1 Scope This International Standard defines the signalling protocol for the control of
Supplementary services and Additional Network Features (ANFs) at the q
reference point. The protocol is part of Private Signalling system No. 1
(PSS1). The Q reference point exists between Private Integrated Services
Network Exchanges (PINX) connected together within a Private Integrated
Services Network (PISN) and is defined in ISO/IEC 11579. Detailed procedures
applicable to individual Supplementary services and ANFs are beyond the scope
of this International Standard and will be specified by other Standards for
those services which are standardised and by individual manufacturers for
proprietary services using the capabilities defined in this International
Standard. ISO/IEC 11572 defines the Layer 3 protocol for circuit-switched call control at
the Q reference point. This International Standard defines additional protocol
procedures, to be used in conjunction with those defined in ISO/IEC 11572 for
the control of Supplementary services and ANFs. NOTE 1 - Typical examples of the application of these generic
functional procedures to some Supplementary services are provided in
Annex A, for explanatory and illustrative purposes only. NOTE 2 - Specific Supplementary services and Additional Network
Features may require additional information transfer mechanisms which
are service or feature specific and are beyond the scope of this
International Standard.