This paper addresses the problem of speech recognition under telephone channel conditions using data simulation method and HMM ( Hidden Markov Model ) adaptation .

该文研究了基于数据模拟方法和HMM（隐马尔科夫模型）自适应的 电话 信道条件下语音识别问题。

The test methods for 60-channel symmetrical cable carrier telephone equipment high - frequency channel

GB/T4770.3-1984对称电缆60路载波 电话设备主要性能的测试方法

Over the years it has been the goal that compressing the transmission bandwidth of speech signal or reducing the transmission rate of telephone channel . In achieving this target speech compression coding technology plays an important role .

多年来，人们一直追求的目标就是压缩语音信号的传输带宽或降低 电话 信道的传输码率，而在实现这一目标中，语音压缩编码技术发挥着重要作用。

A new channel controlled mode for the cordless telephone ( cyclic unfixed channel assignment with a half channels ) is proposed .

提出一种新的无绳 电话 信道控制方式：二分之一信道组循环不定位方式。

A Transmission method of 6 Telephone Channels by Using a Spare TV Sound Channel

利用空闲 伴音 信道传输6路 载波 电话

The limitation of the analog telephone channel bringing to data transmission

模拟 电话 信道对数据传输的限制

How to distinguish the mobile telephone that you purchase whether it is the machine of commodities from abnormal channel of no guarantee !

如何分辨您购买的 手机是否为没有保障的 水货机呢！

Flexible call the algorithm according to the speech feature of telephone channel meets the requirement of the large-scale implementation multi-channel real-time and accurate detection .

根据 话 路语音特征，采取对算法的灵活调用，满足了实际 电话 信道语音实时、多路、大规模实现和精确检测的需求。

By using the Volterra kernel the quantitative analysis of linear and nonlinear intersymbol interference at the output of the orthogonal modulators due to the nonlinear telephone channel having memory is presented when the high speed data signal is transmitted in this system .

在该系统传送高速数据信号时，利用Volterra核定量地分析了正交解调器输出端由于记忆非线性 电话 信道所引起的线性和非线性符号间干扰。

Without CTI technology it is unable to realize the synchronization of telephone channel and computer network data and it is difficult to guarantee the efficiency and quality of service of call system .

建立先进的呼叫系统所必需的关键技术是CTI技术，缺少CTI技术，就无法实现 话 路和计算机网络数据的同步，呼叫系统的效率和服务质量就无法得到保障。

Analysis and Simulation of the Data Queueing Model of a Voice-Data Interpolation System in Single Analog Telephone Channel

单 路模拟 话音/数据插空传输系统数据排队模型分析与模拟

Base on the market requirement we provided the E1 time slot switch E1 special telephone line orderwire wire communication channel MODEM dial short message and other wireless transmission channels .

本课题根据当前的市场需求，提供了E1时隙分插、专用 E1线路、公务 信道、MODEM拨号、短信、无线传输等多种数据传输方式，完全可以满足未来用户的需求。

It has been found that this method can obtain better error resilient performance and can be applied in video transmission over Public Switch Telephone Network ( PSTN ) and wireless channel .

实验证明，此方法可取得较好的容错性能，可应用于公共交换 电话网（PSTN）和无线 信道上的视频传输。

By using the Volterra kernel the quantitative analysis of Linear and nonlinear intersymbol interference at the output of the orthogonal modulator due to the nonlinear telephone channel is presented .

利用Volterra核定量地分析了正交解调器输出端由于非线性 电话 信道引起的线性和非线性符号间干扰。

A Study on the Influence of the Telephone Channel on the Speech Parameters

电话 信道对语音信号参数影响的研究

A telephone submarine cable is laid across the English Channel .

一条 电话海底电缆横穿英吉利 海峡。

QAM modem has been widely used in telephone channel and researches now focus on the area of wide-band communication with high data rate .

QAM调制解调已经在较低数据速率的 电话 信道中得到成熟应用，目前的研究集中在高数据率的宽带通信领域，取得了丰富的成果，但同时也面临大量的技术难点有待解决。

Most single chip modems are designed and manufactured for the telephone circuit . It is only possible to realize point to point communication through one channel with these single chip modems .

大部分单片调制解调器芯片都是依据 电话线路设计制造的，即在一条 信道上只能实现点对点的通信。

The channel organization of Yidu conversion station consists of protective and safety control channel automation channel dispatching telephone channel .

宜都换流站的通道组织为：保护及安控通道、自动化通道、调度 电话 通道。

This link may be a high-speed data communication circuit a local area network ( LAN ) a telephone live or a radio channel .

这种连接的链路可以是高速数据通信电路、局域网（LAN）、 电话 线路或无线 信道。

The thesis is a brief introduction about the technology and structure of IP telephone network and the intercommunication between fixed and IP telephone network . It also explains how to make use of Rudong CATV comprehensive information network E1 channel and IP network to build fixed telephone network .

简要介绍了如东利用CATV综合信息网E1 通道和IP网络建设固定电话网和IP电话网的技术及结构，同时，也阐述了固定电话网和IP 电话网之间的互联互通。

This algorithm can be applied in video communication of Public Switched Telephone Network ( PSTN ) Internet or mobile channel .

这种算法可应用于公共交换 电话网（PSTN），Internet或移动 信道的视频通信。

Thus the utilization ratio of the city telephone line is improved . Research in Utilization Ratio of Wireless Channel

从而提高 市话 信道的利用率。关于无线网络利用率的探讨

It works in the same way any telephone does only with a separate line for video channel .

它和其他 电话的工作原理一样，只是多了一条可视 频道的单线。

For the requirements of the signal-to-noise ratio of lower in part of telephone channel the algorithm to convergence in the time domain and frequency domain step by step .

针对部分 线路上 语音 信噪比较低的实际，引入谱熵进行分级检测，将算法在时域和频域逐级进行收敛。

Phone Call The Telephone Research on Automatic Language Identification Technology Over Telephone Channel

电话 信道下语言辨识技术研究

Additionally someone attack the mobile telephone by short message and short message protocol someone attack SIM card by network service and side channel .

还有针对 手机漏洞的短消息、SIM卡短消息协议处理漏洞的攻击；利用短消息网站漏洞的拒绝服务、SIM卡 旁路的攻击等。

Specifications for 960 telephone channel demodulation equipment used in long-haul terrestrial analog radio relay systems

GB/T9407-1988长距离地面模拟微波接力系统960 路 电话解调机技术要求