共找到 765 条与 电话通信设备 相关的标准,共 51 页
This Addendum updates information contained in TIA/EIA-102.BADA Telephone Interconnect Requirements and Definitions (Voice Services). It provides for several improvements to telephone interconect calls on conventional Project 25 systems. These include availability checks on incoming calls, improved call progress indications and improved call tear down procedures.
P25 - Telephone Interconnect Requirements and Definitions (Voice Service) Addendum 1 - Conventional Individual Calls
Provides common denominators for subscriber line performance, independent of facility types, construction processes or equipment, and circuit provisioning methods.
Telephone Loop Performance Characteristics
In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.
IPCablecom Management Information Base (MIB) framework Study Group 9
Applies to terminal equipment for the Digital Enhanced Cordless Telecommunications (DECT) common interface. DECT terminal equipment consists of the following elements: Fixed Part (FP); Portable Part (PP); Cordless Terminal Adapter (CTA); Wireless Relay Station (WRS) (FP and PP combined).
Digital Enhanced Cordless Telecommunications (DECT); Harmonized EN for Digital Enhanced Cordless Telecommunications (DECT) covering essential requirements under article 3.2 of the R&TTE Directive; Generic radio
本标准规定了不同电信业务经营者关口局间电话业务的路由设置的基本原则和相关要求。 本标准适用于不同电信业务经营者的固定本地电话网、国内长途电话网、国际电话网、IP电话网、陆地蜂窝移动通信网、卫星移动通信网、数字集群网网间关口局间中继路由的设置原则。
Technical requirements of security routing for inter-public telecom network
This Recommendation provides the service descriptions, function model, service profiles, application scenarios and requirements of the videotelephony services based on the IP network. The objective is to describe the service requirements, facilitate interoperability, and provide a guideline to the user, service provider, network carrier, and administrator as well for deploying videotelephony services over IP networks.
Service description and requirements for videotelephony services over IP networks Study Group 16
This Recommendation provides the service descriptions, function model, service profiles, application scenarios and requirements of the videotelephony services based on the IP network. The objective is to describe the service requirements, facilitate interoperability, and provide a guideline to the user, service provider, network carrier, and administrator as well for deploying videotelephony services over IP networks.
Service description and requirements for videotelephony services over IP networks Study Group 16
本部分规定了对进出口数字无绳电话的要求、检验及判定。 本部分适用于电网电源供电的或电池供电的、额定电压不超过600V 的数字无绳电话(包括相关附件)的进出口检验。。
Rules for the inspection of information technology equipment for import and export--Part 5: Digital cordless telephone
2 This technical database forms the Software Distribution in support of the TTY Minimum 3 Performance Specification.
Software Distribution for TIA-889-A ?TTY - Minimum Performance Specification (MPS) See TIA-889-A
本标准规定了固定网交换机新增业务、新增功能、计费、信令、业务量统计和网管的测试要求。 本标准适用于固定网交换机。
Testing methods of the supplementary specification 1 to Store Program Control (SPC)
本标准给出了电话拨号器(以下简称拨号器)在网络中的位置,规定了拨号器的功能、性能、接口特性等技术要求以及相应的测试方法,确立了拨号器接入后对正常通信不造成影响的一般原则。 本标准适用于拨号器类产品的设计、生产、检验以及设备认证。
Technical requirements and testing methods for telephone dialer
本标准规定了工作频率在2.4000~2.4835GHz范围内的数字无绳电话机的使用环境、基本功能、接口特性、无线技术指标要求、电磁兼容性要求、供电要求、安全要求、防雷击要求、基本环境适应性、可靠性要求等技术要求和测试方法。 本标准适用于工作频率在2.4000~2.4835GHz范围内的数字无绳电话机,也适用于座机与通信网连接为模拟通信网接口的数字无绳电话机。
Technical Requirements and Testing Methods for 2.4GHz Digital Cordless Telephone Sets
ITU-T Recommendation P.834 (07/2002), Methodology for the derivation of equipment impairment factors from instrumental models.
Methodology for the derivation of equipment impairment factors from instrumental models Study Group 12
When the military specification requires qualification and there are no products listed or approved for listing on the QPL or when suppliers of those products on the QPL are nonresponsive to an IFB, the qualification requirement of paragraph 3.3 of MIL-J-641 may be waived for procurement of Jack, Telephone, only by the Preparing Activity.
JACKS, TELEPHONE, GENERAL SPECIFICATION FOR
This Recommendation provides a reference radiation pattern for ship earth station antennas that should be used for coordination studies and the assessment of interference between ship earth stations in the mobilesatellite service (MSS) and terrestrial an
Reference radiation pattern for ship earth station antennas
This Recommendation specifies the technical features of Mixed Raster Content (MRC) imaging format that enables efficient processing, interchange and archiving of raster-oriented pages containing a mixture of multi-level and bi-level images. This efficienc
Mixed Raster Content (MRC) Study Group 16; Erratum 1: 06/09/05
In the design of a variety of telecommunication systems, the dynamic characteristics of fading due to atmospheric propagation are of concern to optimize system capacity and meet quality and reliability criteria. Examples are fixed networks that include a
Prediction method of fade dynamics on Earth-space paths (Question ITU-R 201/3)
This corrigendum addresses corrections and clarifications in ITU-T Rec. V.70 (1996) concerning completion of capability exchange, clarification on usage of H.245 "maxBitRate" and of the preferred use of AlternativeCapabilitySet structure, terminology used for simultaneous capability sets, support of G.729 Annex B, and enabling negotiation of the Suspend/Resume Option (ITU-T Rec. V.8 bis).
Procedures for the simultaneous transmission of data and digitally encoded voice signals over the GSTN, or over 2-wire leased point-to-point telephone type circuits Corrigendum 1
that Article 22 of the Radio Regulations (RR) contains epfd↓limits on non-GSO FSS systems which, if met, protect GSO FSS networks from unacceptable interference
Guidelines developed in response to the studies requested in Resolution 140 (WRC-03)
This standard defines the DTMF, Pulse Dial, and Flash network signaling performance requirements for Customer Premises Equipment (CPE) intended for connection to the Public Switched Telephone Network (PSTN).
Telecommunications - Telephone Terminal Equipment - Network Signaling Performance Requirements for Analog Telephones
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