DIN EN 300058-1-1999 综合业务数字网(ISDN).呼叫等待(CW)辅助服务.数字用户用1号系统(DSS1)协议.第1部分:协议规范

标准号：DIN EN 300058-1-1999
中文标准名称：综合业务数字网(ISDN).呼叫等待(CW)辅助服务.数字用户用1号系统(DSS1)协议.第1部分:协议规范
英文标准名称：Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300058-1 V 1.2.4 (1998-06) as German
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：33.080
适用范围：The document deals with the stage-3-description of the user-network interface for the supplementary service Call Waiting in the pan-European ISDN. With the signalling procedures given in this document the called user is permitted to be notified of an incoming call although all the B-channels are unavailable at that time. The called user has then the choice of accepting, rejecting or ignoring the waiting call.#,,#