M40 电话通信设备 标准查询与下载



共找到 765 条与 电话通信设备 相关的标准,共 51

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

ICS
CCS
M40
发布
2000-06-01
实施

The document specifies requirements in the telecommunication sector.

Universal Personal Telecommunication (UPT) - UPT Phase 2 - Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Public Switched Telephone Network (PSTN), Integrated Services Digital Network (ISDN) and Global System for Mobi

ICS
33.070.50
CCS
M40
发布
2000-06
实施

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Artificial voices

ICS
CCS
M40
发布
2000-05-25
实施

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Artificial voices (Study Group 12)

ICS
CCS
M40
发布
2000-05-25
实施

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Artificial voices

ICS
CCS
M40
发布
2000-05-25
实施

Specification of Dual Tone Multi-Frequency (DTMF) Tranmitters and Receivers; Part 1: General

ICS
CCS
M40
发布
2000-05-01
实施

Specification of Dual Tone Multi-Frequency (DTMF) Tranmitters and Receivers; Part 3: Receivers

ICS
CCS
M40
发布
2000-05-01
实施

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

ICS
CCS
M40
发布
2000-05-01
实施

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

ICS
CCS
M40
发布
2000-05-01
实施

This ITU-T Recommendation describes methods and procedures for the evaluation of complex terminals, network components and transmission systems. The test methods mostly make use of test signals described in ITU-T Recommendations P.50, P.59 and P.501. For various technical implementations and conversational situations, the possible impacts on the speech quality perceived subjectively are given and the relevant measurement procedures are described.

Objective test methods for speech communication systems using complex test signals

ICS
CCS
M40
发布
2000-05-01
实施

This ITU-T Recommendation describes procedures to be used to assess the subjective performance of hands-free terminals. The methods defined here may be used to assess the extent to which a hands-free terminal operates effectively for speech. This ITU-T Recommendation does not define specific values for hands-free terminal parameters (e.g. convergence time of echo cancellers) to yield satisfactory subjective performance.

Subjective performance evaluation of hands-free terminals

ICS
CCS
M40
发布
2000-05-01
实施

本标准规定了铁路数字式电话集中机的技术要求和试验方法。 本标准适用于铁路车站数字式电话集中机的生产、检验及维护。

Technical requirements and test method for digital concentrated telephone units

ICS
33.050.10
CCS
M40
发布
2000-03-29
实施
2000-11-01

Public Switched Telephone Network (PSTN); 2-Wire Analogue Voice Band Switched Interfaces; Timed Break Recall (Register Recall); Specific Requirements for Terminals (V1.1.1)

ICS
CCS
M40
发布
2000-02-01
实施

This amendment forms a part of MIL-J-641E, dated 26 February 1979, and is approved for use by all Departments and Agencies of the Department of Defense.

JACKS, TELEPHONE, GENERAL SPECIFICATION FOR

ICS
33.050.10
CCS
M40
发布
2000-01-24
实施

MIL-T-13460, including Amendment 2, dated 4 March 1986, is inactive for new design and is no longer used, except for replacement purposes.

TELEPHONE SET TA-263-PT

ICS
33.040.35
CCS
M40
发布
2000-01-04
实施

For frequency division duplex (FDD) mode, only HAPS systems employing terrestrial IMT-2000 CDMA and TDMA radio interfaces will be considered. Among the IMT-2000 FDD radio interfaces, only two, namely IMT-2000 CDMA direct spread and multi-carrier will be c

Minimum Performance Characteristics and Operational Conditions for High Altitude Platform Stations Providing IMT-2000 in the Bands 1 885-1 980 MHz 2 010-2 025 MHz and 2 110-2 170 MHz in Regions 1 and 3 and 1 885-1 980 MHz and 2 110-2 160 MHz in Region 2

ICS
CCS
M40
发布
2000-01-01
实施

Supplement 36 to ITU-T Q-series Recommendations was prepared by ITU-T Study Group 11 (2001-2004) and approved under the WTSA Resolution 5 procedure on 6 December 2000.

Technical Report TRQ.3030: Operation of the Bearer Independent Call Control (BICC) Protocol (CS-2) with IP Bearer Control Protocol (IPBCP) Series Q: Switching and Signalling Study Group 11

ICS
CCS
M40
发布
2000
实施

This Recommendation defines signals, messages and procedures for exchanging these over the PSTN and on leased point-to-point telephone-type circuits, when the modes of operation of DCEs and DTEs communicating over the connection need to be automatically established and selected, but before signals are exchanged which are specific to a particular Recommendation. Considerations are included for the standard analogue telephony mode of operation.

Procedures for the identification and selection of common modes of operation between data circuit-terminating equipments (DCEs) and between data terminal equipments (DTEs) over the public switched telephone network and on leased point-to-point teleph

ICS
CCS
M40
发布
2000
实施

This document was generated in response to APCO Project 25 requirements for telephone interconnect. However, it is applicable to any general land mobile communications system.

Telephone Interconnect Requirements and Definitions (Voice Service)

ICS
33.070.10
CCS
M40
发布
2000
实施

SP-4352 establishes voice performance requirements for narrowband digital wireline telephones with codecs that conform to the ITU-T G-Series Recommendations and where transmission is in digital format.

Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Narrowband Voice Over IP (VOIP) and Voice Over PCM Digital Wireline Telephones

ICS
33.050.10
CCS
M40
发布
2000
实施



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