A dial tone is not sent in some telephone networks.
在某些电话网络中不发送拨号音。
Mobile telephone networks weren’t working, but it helped having 300 wireless handsets.
移动电话网络当时陷入瘫痪，但300多个无线电话机发挥了有益作用。
Telephone networks were overwhelmed as people around the country attempted to make calls.
由于全国的人们都想打电话造成了电话网络超负荷。
The charging system is of great importance in the management architecture of local telephone networks.
计费和帐务系统是本地电话网中最重要的管理系统之一。
While this is in theory possible with traditional telephone networks, access to switching equipment is easier to control.
虽然这对传统电话网络在理论上也有可能，但交换设备更容易保护。
Power and telephone networks in some areas have been disrupted, making it difficult to assess the extent of the devastation.
部份地区的电力及通讯中断，令救援及灾情评估的工作越见困难。
Physiological signals can't be transmitted through telephone networks because they are full of ultra low frequency components.
由于生理信号的超低频分量相当丰富，利用电话网络无法直接传送。
The cellular digital packet data(CDPD) system is a wireless packet communication system based on analog cellular telephone networks.
蜂窝数字分组数据（CDPD）系统是基于模拟蜂窝电话网的无线分组数据通信系统。
The call tariffs are one of the lowest call world enabled due to the mega telephone networks and huge competition among the top player.
呼叫资费是由于电话网络和顶级玩家之间的巨大竞争而造成的最低呼叫世界之一。
Introduces a remote monitoring-measuring system used for environmental protection based upon PSTN (Public Switched Telephone Networks).
介绍了基于PSTN(公共程控交换电话网络)的环保远程监测系统。
The call forwarding sample demonstrates the call forwarding feature typically seen in public switched telephone networks, but it USES a SIP network.
CallForwarding示例显示了访问转寄的特性，该特性一般见于公共交换电话网络，但是它使用了一个SIP网络。
The region to the south is dominated by warring clans, but even here some aspects of normal life, such as mobile telephone networks, manage to survive.
南方的地区则被征战不休的部族统治，然而即使在那里，正常生活的某些方面也得以保留，例如移动电话网络。
Based on booking tickets for passenger traffic by rail in our country, this paper proposes the booking ticket system in computer-telephone networks.
本文从我国铁路客运订票的具体情况出发，提出了计算机电话订票系统。
Many telecommunications customers use AsiaSat for services such as public telephone networks, private VSAT networks and broadband multimedia services.
许多亚洲电信用户使用的服务，如公共电话网络，私营甚小孔径终端网络和宽带多媒体服务。
Now, when an emergency occurs, the first people on the ground are often computer geeks, setting up telephone networks so other aid agencies can do their stuff.
现在，一旦发生紧急情况，到达现场的第一批人通常是电脑工作者，他们建好电话网络，以便其它的救援机构能一显身手。
This Paper introduces the design and implementation of a centralized management system for automatic telephone charging equipment based on telephone networks.
论述了基于电话网的电话自动计费器集中管理系统及配套作用的电话计费器的设计思想。
Since 1995 we have had our recommendations for SPD specifications adopted with success widely all over Africa, and particularly by Mobile Telephone Networks in Africa.
自从1995年开始，我们对电涌防护器（SPD）应用参数的建议在整个非洲得到了成功、广泛地采纳，特别是非洲的无线电话网络。
The cellular digital packet data (CDPD) is a system which borrows idle radio channels from the existing cellular mobile telephone networks for packet data transmission.
蜂窝数字分组数据(CDPD)是利用现有的模拟蜂窝电话网来传输数据的一种新技术。
He could never quite accept my explanation that IP networks were more like electronic postal systems than telephone systems.
他也从来不会好好地听我给他解释说现在的IP网络更象电子邮政系统，而非他当年的电话系统。
Small wireless networks, based on digital cellular telephone principles, currently offer data rates between two and 10 megabits per second over a range of a few hundred meters.
基于数字移动电话的原则的小型无线网络，目前在几百米范围上提供的数据传输速率在2和10兆比特每秒之间。
Further, mobile devices can now bypass the telephone company network and connect directly with corporate networks through Wi-Fi both for speed and security.
还有，移动设备现在可以越过电话公司的网络直接通过Wi - Fi访问企业网络，这保证了速度和安全。
Speeds should improve in future as Virgin Media, a cable firm, and BT, the old state telephone monopoly, upgrade their networks.
随着维京传媒电缆公司（Virgin Media）和老牌国家电话也垄断企业英国电信（BT）升级网络，英国网速有望提高。
Let's begin with the Internet people. The Internet people wanted convergence with the telephone and later television networks, because they wanted ubiquitous.
让我们从互联网人开始说起，互联网人想要和电话以及后来的，电视网络聚合，因为他们无所不在。
When you make a telephone call, you're using their network, and you're also making use of the peer agreements they have with other phone networks, while enjoying the use of their routing system.
每当你打电话，你就在使用他们的网络，当你在使用他们的路由系统的时候，同时也在使用移动运营商与其他电话网络之间的协议。
Some rural telephone lines are not working and mobile networks are barely functioning.
一些农村地区的电话线不通，移动通信网络也不太管用。
Many poorer countries also have limited phone networks, so rely on satellites to handle telephone calls in remote areas.
许多较穷困的国家还在使用受限的电话网络，故而依靠卫星来解决偏远地区的通话。
Public Switch Telephone Network is one of mature networks.
公共交换电话网是成熟的网络之一。
Public Switch Telephone Network is one of mature networks.
公共交换电话网是成熟的网络之一。
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