ISO/IEC 15991:2003 EN 58b6df38
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
现行
发布日期 :
2003-03-21
实施日期 :
ISO/IEC 17309:2000 EN ed6b0607
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair of on-demand inter-PINX connections
现行
发布日期 :
2000-10-05
实施日期 :
ISO/IEC 17877:2000 EN 5f8849de
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Private User Mobility (PUM) — Call handling additional network features
现行
发布日期 :
2000-04-13
实施日期 :