ISO/IEC 15991:2003 EN d94270fc
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 15992:2003 EN 3401ac21
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call Priority Interruption and Call Priority Interruption Protection supplementary services
现行
发布日期 :
2003-03-24
实施日期 :
ISO/IEC 15992:2003 EN 55a28161
Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call Priority Interruption and Call Priority Interruption Protection supplementary services
现行
发布日期 :
2003-03-24
实施日期 :
ISO/IEC 17309:2000 EN 2b0205b1
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 :