1621. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Recall supplementary service. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1622. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Route restriction class additional network feature. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1623. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Transit counter additional network feature. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1624. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Advice of charge supplementary services. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (76 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1625. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Call interception additional network feature. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1626. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Call priority interruption and call priority interruption protection supplementary services. (15th March 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1627. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Path replacement additional network feature. (15th April 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (46 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1628. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Recall supplementary service. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1629. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Route restriction class additional network feature. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
1630. Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Transit counter additional network feature. (15th December 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗