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辅助生活设施和独立生活设施用紧急呼叫系统的安全标准
UL Standard for Safety Emergency Call Systems for Assisted Living and Independent Living Facilities (First Edition; Reprint with revisions through and including November 8@ 2018)
参考页数：120P.;A4
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电信.电话终端设备.无绳电话.距离测量规程
Telecommunications - Telephone Terminal Equipment - Cordless Telephone - Range Measurement Procedures
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电信.电话终端设备.终端设备连接到电话网络的技术要求
Telecommunications Telephone Terminal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network
参考页数：204P.;A4
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数字键盘的字母键分配
Allocation of Letters to the Keys of Numeric Keypads
参考页数：2P;A4
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通讯.电话终端设备.模拟免提电话的传输要求
Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Analog Speakerphones
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个人间电缆通信1.0第2部分:使用电缆调制解调器的有线电视网络提供双向音频服务的音频编解码器要求
IPCablecom 1.0 Part 2: Audio Codec Requirements for the Provision of Bi-directional Audio Service Over Cable Television Networks Using Cable Modems
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模拟和数字电话机,手机和听筒传输性能测量的标准方法
Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets@ Handsets@ and Headsets (Includes Access to Additional Content)
参考页数：173P.;A4
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电信.全球开关电话网(GSTN)多媒体终端的概述和参考
Telecommunications - Overview and Reference for GSTN Multimedia Terminals
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测量免提电话传输性能的标准方法
Standard Method for Measuring Transmission Performance of Speakerphones
参考页数：101P.;A4
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可视电话会议/可视电话信号的数字传送.主观和客观性能评定的视频试验现场
Digital Transport of Video Teleconferencing/Video Telephony Signals - Video Test Scenes for Subjective and Objective Performance Assessment
参考页数：29P;A4
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