基于Harris20-20LH交换机语音服务的实现

介绍了利用ASR、TTS技术的语音平台通过和电厂Harris20-20LH程控交换机的接口,实现电话号码查询、主叫识别、通信设备报警、宾馆提醒业务等语音服务,从而实现减人增效,提高电厂通信综合服务的能力.     

有关4G网络通信新技术的研究

4G网络通信是指它除了提供传统2G、3G通信的语音业务之外,还能够提供基于视频、数据、语音的各种服务,给客户带来高速的视频通信和数据通信,实现真正的沟通自由,彻底改变我们的社会形态和生活方式.文章阐述了4G网络通信新技术的特点,并就4G网络通信新技术的应用进行了深入的探讨.     

NGN与PSTN业务分析比较

随着通信技术的快速发展和市场需求的变化,电信业务正由传统的语音业务向包括语音、数据、图像等综合性业务转变。传统电话网络业务过于单一,成为网络通信业务发展的瓶颈,通过分组网的过渡可以引入下一代网络,以两网(PSTN和NGN)的平滑演进驱动新兴增值业务。     

H.323VoIP电话网络呼叫过程分析

简单介绍了H.323协议的语音呼叫过程,通过实验抓取语音网关和语音服务器通信时的报文,分析了H.323Voip语音电话的呼叫过程,便于更加清晰地了解VoIP的语音通信过程。     

浅谈矿区通信的发展

适应数据通信的发展是通信企业生存的关键，根据矿区通信的目前情况，还应以语音业务为主营方向，同时应加快新业务的开发和利用，以 及通过有效的手段降低生产运行的成本。     

接入网技术在铁路通信中的应用

随着电信业务逐渐从传统的电话等窄带业务向语音、高速数据和可变视频于一体的多媒体宽带业务发展,全网的数字化和光纤化是发展的必然趋势.另外,由于通信网结构的变化和电信新业务的不断出现,促使各种各样的接入网技术不断涌现,接入网典型的组网方式有点对点和点对多点,其网络形式可以是星形、环形、链形或是多种组网形式的组合.文章介绍了铁通通辽通信段管内接入网采用的基本框图、接入方式、以及接入网在铁路通信中的重要性和发展趋势.     

高铁场景下VoLTE语音质量提升研究

中国目前的VoLTE业务已经能够为基础网络用户提供可靠的通信支持,但在对网络传输有着特殊要求的高铁场景下,VoLTE业务的服务质量与基础网络相比仍有较大差距。为进一步提高高铁场景下的VoLTE语音服务质量,分析了高铁场景下影响VoLTE语音质量MOS值的主要因素,提出优化VoLTE语音质量的思路。通过实验分析了各关键参数分别对高铁场景下VoLTE语音质量的影响,提出一种改进的参数修改方案,并证明了使用修改后的参数能够获得更好的语音质量。     

煤炭行业专网VOIP改造方案分析

煤炭行业专网语音和数据业务的分离增加了通信的成本,为了降低语音通信的成本,在煤炭专网上实现VOIP是必要的.考虑煤炭行业通信的实际情况,提出了煤炭行业专业VOIP改造方案,并分析其优缺点.     

2012美国企业教育前20强

01威瑞森电信(Verizon Communications)2012年美国企业教育排行榜第1名2011年美国企业教育排行榜第3名企业简况威瑞森电信是美国最大的有线通信和语音通信提供商,总部位于纽约市。威瑞森的主要业务为语音通话、固定宽带和无线通信,在欧洲、亚洲、太平洋地区等全球45个国家经营电信及无线业务。公司拥有1.4亿条接入线,在美国住宅用户通信市场上的占有     

基于IP城域网的QoS实现

IP城域网是以IP技术为核心,融合通信和计算机技术的互联网络平台,能够承载数据、语音、视频等业务,不同的业务对服务质量(QoS)有不同的要求。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.