The agreement signed saturday with ethiopia telecom corp proposes to build up the east african nation ' s fledgling telecommunications network , a statement issued by zte to the shenzhen bourse said 中兴公司在深圳交易中心说，中兴公司与埃塞电信公司签订的协议计划帮助建立东非国电话通信网络。
Networks telephone , is over the communication system of h . 323 , which is made up of gatekeeper and endpoints . gatekeepers provide register control , admission control and address translation services 网守是网络电话通信系统的管理设备，管理所有的终端，为终端提供地址翻译和网络接入等服务。
Internet phone realizes the high - speed transmission and exchange of telephone subscriber ' s audio frequency dataflow by utilizing the existing computer network to make up the communication network of the telephone Ip电话是利用现有的计算机网络组成电话通信网络，实现电话用户音频数据流的高速传输及交换。
Intelsat , ltd . offers telephony , corporate network , video and internet solutions around the globe via capacity on 25 geosynchronous satellites in prime orbital locations Intelsat凭著设于重要轨道的25枚地球同步轨道( geosynchronous )卫星，为世界各地用户提供电话通信、企业网络、影像及互联网服务方案。
Most of the presently - used telephone communication system is the central - switching one which adopts the star topological structure and whose user sets are connected to the switch through their respective telephone lines 目前使用的电话通信系统主要是采用星型拓扑结构，其用户话机通过各自的电话线路与主机相连的有主机系统。
With the rapid development of communications and internet technology , especially the recent 20 years , speech compressing coding technology has been widely used and plays a very important role in mobile communications , satellite communications , multimedia communications and ip - phone communications 随着通信、计算机网络等技术的飞速发展,尤其是最近20年,语音压缩编码技术在移动通信、卫星通信、多媒体技术以及ip电话通信中得到普遍应用,并起着举足轻重的作用。
The system without putting on the lines is convenient for realizing the telephone communication , increasing the telephone users , and shorting the time limited for the project and improving the efficient for the network resources . it can receive the best social efficient . 在不需要铺设电话线路的情况下，方便地实现电话通信，增加电话用户，缩短安装工程周期，提高计算机网络资源利用率，扩大电话的普及范围，使用户受益，加大信息传递量，可收到良好的社会效益。
This system has extensive popularization and the prospect at the telephone communication of trade in educational system , scientific and technological system , electricity industry system , banking system , public security system , etc . the article introduces the conceptual scheme of the software design of this inernet phone based on lan by combinating with the typical of the telephone communication and lan 该系统在教育系统、科技系统、电业系统、银行系统和公安系统等行业的电话通信上有着广泛的推广及应用前景。本文根据电话通信和局域网的特点，提出了基于局域网的ip电话软件设计的总体方案。
This telephone communication system can use the computer network to transmit and switch the data stream for the telephone subscriber in a high speed . in this paper the telephone termination of the telephone communication system which adopts the technic of the computer , electronic and communication is designed 本文提出了利用计算机网络来实现电话用户音频数据流的高速传输及交换的计算机网络电话通信系统，从而研制了基于计算机技术、电子技术和通信技术的计算机网络电话通信系统的用户终端。
The system is using the existing the network resources to obtain the prominent economic benefit through organizing the telephone communication without putting on the lines and purchasing the telecommunication network equipments , which is saved much costs such as equipment charges , lines charges , and project charges 计算机网络电话通信系统无需铺设电话线路和购置电话通信网络设备，节省大量建设电话网络的设备费、线路费和工程费等费用，可取得显著的经济效益。
