Had I not prerecorded my demos, I would have had to bring along a few Exchange Servers and a telephone switch.
如果没有事先录制好演示内容，我就得带上几台交换服务器和电话交换机了。
Responsibilities: management and take care of company computers and server, door keeping system and telephone switch.
工作职责：管理维护公司的用户电脑以及服务器，门禁系统，电话交换机。
Like many other developers with a history in telecom, I learned that when you build a telephone switch, regulations say it must provide dial tone in 40ms, a difficult requirement to achieve.
像许多常年混迹于电信行业中的开发人员一样，我所学习到的是，若实现一个电话交换，则一定要在40毫秒内发出拨号音，这是一个难以实现的需求。
Thus a base station of PHS is compatible with ISDN and is often connected directly to ISDN telephone exchange equipment e.g. a digital switch.
因此，小灵通基站也可与综合业务网系统相匹配并且经常作为综合业务网电话的交换设备。譬如，电子交换机。
The typical IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does.
典型的IPPBX还能交换VoIP用户与传统电话用户之间的电话，或者以常规p BX一样的方法交换两个传统电话用户之间的电话。
It apparently took just one telephone call from the Kremlin to switch the tone from vehemently anti-Western to broadly neutral.
显然克里姆林宫的一通电话便可将强烈反西方的音调转换为明确中立的。
A person communicating from the desk may use either a video telephone or PC equipped for multimedia server is used to switch the voice, video, data and image to all sites.
人们可以使用可视电话、或者装备了PC的多媒体设备通过切换声音、电视图象、数据和图象到各地点进行通信。
Thus a base station of PHS is compatible with ISDN and is often connected directly to ISDN telephone exchange equipment e. g. a digital switch.
因此，小灵通基站也可与综合业务网系统相匹配并且经常作为综合业务网电话的交换设备。譬如，电子交换机。
VoIP adopts the switch technology which is completely different compare with traditional telephone, the VoIP studied in this thesis is based on the H. 323 protocol.
IP电话采用了与传统电话截然不同的交换技术，本论文研究的IP电话是基于H。323协议的IP电话。
The multi-merchant environment of switch is always a difficult problem on developing our countrys telephone network management system(TNMS).
交换机多厂商环境一直是困扰我国电话网管理系统建设的难题。
The automatic connection interface circuits between the PABX and the automatic switch equipments of telephone office are presented in this paper.
本文介绍电话局自动电话交换设备与机关企业用自动化小交换机间全自动化接续的接口电路。
Public Switch Telephone Network is one of mature networks.
公共交换电话网是成熟的网络之一。
PSTN (Public Switch Telephone Net) short message, which is recently introduced by China Telecom, is a non-voice value-added service.
固话短信是中国电信新近推出的一项基于固定电话网的非话音类增值业务。
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。
The telephone is used with the explosion-proof coupling of HOB-1 and connect to program controlled switch to form explosion-proof communication system.
话机与关联设备HOB-1型防爆耦合器配套， ● 户内、户外 与交换机连接，组成防爆电话通讯系统。
The online data collection system is a subsystem of the whole data collection and billing system. In this system, the telephone billing data in the switch is collected automatically via the X.
联机采集系统是计费数据联机实时采集系统的一个子系统，由采集终端通过交换机x。
At the telephone company end, ISDN lines connect to a digital switch.
在电话局一端，ISDN线连到数字交换机。
China Unicom under such background began to set up IP Public Switch Telephone Network nationwide, and has rapidly covered all the IP PSTN in the country.
在这样的背景下，中国联通开始在全国范围建设IP电话网，并很快形成了覆盖全国的IP电话网络。
China Unicom under such background began to set up IP Public Switch Telephone Network nationwide, and has rapidly covered all the IP PSTN in the country.
在这样的背景下，中国联通开始在全国范围建设IP电话网，并很快形成了覆盖全国的IP电话网络。
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