Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Service description
综合业务数字网（ISDN）；呼叫保持补充业务；服务描述

1992-03-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Functional capabilities and information flows
综合业务数字网（ISDN）；呼叫保持补充业务；功能能力和信息流

1992-05-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; service description; english version ETS 300139:1992
综合业务数字网（ISDN）；呼叫保持补充业务；服务描述；英文版ETS 300139:1992

1992-12-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; functional capabilities and information flows; english version ETS 300140:1992
综合业务数字网（ISDN）；呼叫保持补充业务；功能能力和信息流；英文版ETS 300140:1992

1992-12-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第1部分:协议规范

1998-06-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第1部分:协议规范

1992-05-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第5部分:网络测试套件结构和测试目的（TSS&TP）规范

1998-06-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第2部分:协议实现一致性声明（PICS）形式规范

1996-09-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第2部分:协议实现一致性声明（PICS）形式规范

1998-06-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第3部分:用户测试套件结构和测试目的（TSS&TP）规范

1996-10-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第3部分:用户测试套件结构和测试目的（TSS&TP）规范

1998-06-01

Integrated Services Digital Network ISDN-Call Park Supplementary Service
综合业务数字网ISDN呼叫中心补充业务

1996-03-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第6部分:网络抽象测试套件（ATS）和部分协议执行额外测试信息（PIXIT）形式规范

1996-10-01

Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 2 for the international interface; Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993), modified]
综合业务数字网（ISDN）；七号信令系统；国际接口的ISDN用户部分（ISUP）第2版；第16部分:呼叫保持（Hold）补充业务[ITU-T建议Q.733 第2条（1993） 修改]

1995-02-01

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993) modified]
综合业务数字网（ISDN）；7号信号系统（SS7）；国际接口的ISDN用户部分（ISUP）第4版；第16部分:呼叫保持（Hold）补充业务[ITU-T建议Q.733 第2条（1993）修改]

2001-07-01

Integrated Services Digital Network (ISDN) - Call Hold (HOLD) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300141-1 V 1.2.4 (1998-06) as German standard)
综合业务数字网（ISDN）.呼叫保持（Hold）补充业务.数字用户信号发送系统第1号（DSS1）协议.第1部分:协议规范（作为德国标准的英文版EN 300141-1 V 1.2.4（1998-06）的认可）

2000-01-01

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
综合业务数字网（ISDN）；呼叫保持补充业务；数字用户信令系统第一号（DSS1）协议；第4部分:用户抽象测试套件（ATS）和部分协议执行额外测试信息（PIXIT）形式规范

1996-10-01

Integrated Services Digital Network (ISDN); Call Deflection (CD) supplementary service; Service description
综合业务数字网（ISDN）；呼叫偏转（CD）补充业务；服务描述

1994-12-01

Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; Service Description
综合业务数字网（ISDN）；呼叫等待补充业务；服务描述

1991-10-01

Integrated Services Digital Network (ISDN); ISDN service enhancements based on DDI ranges for call diversion supplementary services
综合业务数字网（ISDN）；基于呼叫转移补充业务DDI范围的ISDN业务增强

2000-03-01