ISO/IEC 21407-2001 信息技术 系统间通信和信息交换 个人综合业务网 规范、功能模型和信息流 简单对话补充业务

标准号：ISO/IEC 21407-2001
中文标准名称：信息技术 系统间通信和信息交换 个人综合业务网 规范、功能模型和信息流 简单对话补充业务
英文标准名称：Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Specification, functional model and information flows; Simple dialog supplementary service
标准类型：M11
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：M11
国际标准分类号：33.040.35
适用范围：This International Standard specifies the supplementary service Simple Dialog (SS-SD), which is applicable to various basic services supported by Private Integrated Services Networks (PISNs). Basic services are specified in ISO/IEC 11574. Supplementary service SD enables a user to communicate with another user or application by the exchange of keypad and display information transparently over a PISN. Service specifications are produced in three stages, according to the method described in ETS 300 387. This International Standard contains the stage 1 and stage 2 specifications of SS-SD. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) specifies the functional entities involved in the supplementary service and the information flows between them.