M40 电话通信设备 标准查询与下载

ETSI TBR 8 CORR 1-2001 综合业务数字网(ISDN).3.1 kHz电话远程业务.手机终端的附加要求勘误表,2001年2月

Integrated Services Digital Network (ISDN); Telephony 3,1 kHz Teleservice; Attachment Requirements for Handset Terminals (Corrigendum, February 2001)

ITU-T P.833 SPANISH-2001 推导主观只听测试设备的损伤因素的方法.系列P:电话传输质量.电话设备.本地线路网络.评定质量的客观和主观方法.12号研究组

This Recommendation describes the methodology for deriving equipment impairment factors (Ies)from subjective listening-only tests. It is intended that it primarily be applied to determining Ies fordigital signal processing devices used in the network that have not otherwise been covered by the E-model. The equipment impairment factors derived by this methodology are intended to be used in the E-model (see ITU-T Recommendation G.107). They will reflect the auditory impairments of the corresponding equipment in a listening-only mode.

Methodology for derivation of equipment impairment factors from subjective listening-only tests

ITU-R BT.1549-2001 交互信道的数据链路协议

This Recommandation specifies the data link layer protocol which can be applied when using a low data rate modem and a simple data transfer protocol for the interaction channel (i.e. non IP-based protocols such as high level data link control (HDLC) (IS

Data link protocol for interaction channel

ITU-R BR.715-1-2001 模拟电子新闻采集记录的国际交换

full-broadcast quality VTR machines, without significant deterioration in picture quality.

International Exchange of Analogue Electronic News Gathering Recordings

ITU-T P.300 FRENCH-2001 群组音频终端(GATs)的传输性能.系列P:电话传输质量.电话设备.本地线路网络.用户线路和设置.12号研究组

This Recommendation provides the speech transmission requirements for Group Audio Terminals (GATS). The associated test methods for verifying the specified performances are contained in Annex A. An in-situ procedure for checking and aligning GAT terminals in the field is provided in Appendix I.

Transmission performance of group audio terminals (GATs)

ITU-T P.300 SPANISH-2001 群组音频终端(GATs)的传输性能.系列P:电话传输质量.电话设备.本地线路网络.用户线路和设置.12号研究组

This Recommendation provides the speech transmission requirements for Group Audio Terminals (GATS). The associated test methods for verifying the specified performances are contained in Annex A. An in-situ procedure for checking and aligning GAT terminals in the field is provided in Appendix I.

Transmission performance of group audio terminals (GATs)

ANSI/TIA/EIA 793-2001 模拟用户和数字连接服务器调制解调器评定用北美电话网络传输模型

Defines a model of the characteristics of the Public Switched Telephone Network (PSTN) in the continental US which determines PCM modem transmission performance. Electronic copies of the document can be purchased from global@ihs.com

North American Telephone Network Transmission Model for Evaluating Analog Client and Digitally Connected Server Modems

ANSI/TIA/EIA 855-2001 电信.电话终端设备.黑白干扰拨号音检测设备.性能要求

Provides specifications for CPE devices designed to automatically detect stutter dial tone on an analog telephone line

Telecommunications - Telephone Terminal Equipment Stutter Dial Tone Detection Device - Performance Requirements

ITU-T SERIES A SUPP 3-2001 IEIF和ITU-T协作指导方针

This Supplement provides guidance to aid in the understanding of collaboration on standards development between ITU-T and the Internet Society (ISOC)/Internet Engineering Task Force (IETF).

IETF and ITU-T collaboration guidelines

NF Z81-834*NF ETS 300834:2000 终端设备(TE).窄带网(PSTN)和(ISDN).不用数据设施的的音视频检索服务通道.ISDN 或 PSTN可视电话终端相对于音视频数据库的通道

Terminal Equipment (TE) - Narrowband networks (PSTN or ISDN) - Access to interactive audio-visual retrievial services without datafacility - Access for ISDN or PSTN videophony terminals to audio-visual databases.

ETSI ES 201 235-1-2000 双音多频(DTMF)发射机和接收机的规范.第1部分:总则(版本1.1.1)

Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 1: General (V1.1.1)

ETSI ES 201 235-2-2000 双音多频(DTMF)发射机和接收机的规范.第2部分:发射机(版本1.1.1)

Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 2: Transmitters V1.1.1

ETSI ES 201 235-3-2000 双音多频(DTMF)发射机和接收机的规范.第3部分:接收机(版本1.1.1)

Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 3: Receivers V1.1.1

ETSI ES 201 235-4-2000 双音多频(DTMF)发射机和接收机的规范.第4部分:在端到端信令终端设备中使用的接收机(版本1.1.1)

Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Receivers for Use in Terminal Equipment for End-to-End Signalling V1.1.1

DIN EN 300001:2000 公共交换电话网(PSTN)附件.PSTN模拟用户接口连接设备一般技术要求

Attachements to the Public Switched Telephone Network (PSTN) - General technical requirements for equipment connected to an analogue subscriber interface in the PSTN (Endorsement of the English version EN 300001 V 1.5.1 (1998-10) as German Standard)

ETSI TBR 8 CORR 1-2000 综合业务数字网(ISDN).3.1 kHz电话远程业务.手机终端的附加要求.第1版.勘误表,2000年7月

Integrated Services Digital Network (ISDN); Telephony 3,1 kHz Teleservice; Attachment Requirements for Handset Terminals

YD/T 1065-2000 单模光纤偏振模色散的试验方法

本标准规定了单模光纤偏振模色散(PMD)的基准试验方法(RTM)和替代试验方法(ATM)，规定了对试验装置、注入条件、测量程序、计算方法、结果的统一要求。 本标准适用于对GB/T 15972.1中规定的B类未成缆和已成缆单模光纤PMD特性的检验。

Test methods for polarization mode dispersion of single-mode optical fibres

YD/T 1071-2000 IP 电话网关设备技术要求

Technical requirements for IP telephony gateway

ITU-T Q.2767.1-2000 软PVC能力

This Recommendation contains formats and procedures for supporting soft Permanent Virtual Connections (soft PVCs). Soft PVC capability utilizes the normal procedures of B-ISUP in order to control soft permanent virtual circuit connections between their en

Soft PVC Capability - Series Q: Switching and Signalling - Broadband ISDN - B-ISDN Application Protocols for the Network Signalling Study Group 11

ITU-T SERIES A SUPP 2-2000 互用性实验指南

These guidelines relate to interoperability experiments to be performed outside of ITU-T. The guidelines have been prepared to encourage such experiments to be performed and to facilitate information exchange between parties participating in such experime

Guidelines on Interoperability Experiments