网友您好， 请在下方输入框内输入要搜索的题目：

题目内容 （请给出正确答案）

Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.

VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.

A．time

B．cash

C．costs

D．space

参考答案

更多 “ Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.A．timeB．cashC．costsD．space ” 相关考题
考题 F820可提供VOIP业务,当VOIP板的ALM灯是绿色时,代表ONU没有注册成功;当VOIP板的ALM灯是熄灭时,代表ONU注册正常,且没有告警出现。 A．错误B．正确
查看答案
考题 E8－C中WAN服务里的4个通道,按照集团规定的优先级顺序是() A.itv、voip、tr069、上网B.voip、itv、tr069、上网C.voip、itv、上网、tr069D.tr069、itv、voip、上网
查看答案
考题 VoIP技术的优越性主要是()A.VoIP价格低廉B.业务应用广泛C.通信质量高D.运营成本低
查看答案
考题 江苏电信e8－c终端,按照集团规定优先级配置上行QoS,优先级顺序为() A.上网、voip、itv、tr069B.itv、voip、tr069、上网C.voip、itv、tr069、上网D.voip、069、itv、tr上网
查看答案
考题 在VoIP系统中，通过对声音信号进行压缩编码。A．ISP B．VoIP网关 C．核心路由器 D．呼叫终端
查看答案
考题 在VoIP系统中，通过(37)对声音信号进行压缩编码。A．ISPB．VoIP网关C．核心路由器D．呼叫终端
查看答案
考题 Which of the following is a performance optimization technology?() A.QoSB.TrunkingC.SpanningD.VoIP
查看答案
考题 VoIP可以采取多种标准协议实现,以下不属于VOIP使用的协议是:()。 A.SIPB.RTSPC.H.323D.MGCP
查看答案
考题 若用户申请语音业务—设备面板亮灯应为()。 A.Auth（认证）；B.Auth（认证）、Link（链路）、VOIP（语音）；C.VOIP（语音）
查看答案
考题 相对于公共交换电话网络（PSTN）和虚拟专用网（VPN），IP电话（VoIP）具有以下哪一项特性？A.VoIP上的所有通信均被加密，因此搭线窃听会很困难。 B.VPN的安全性不如PSTN或VoIP。 C.通过VoIP系统来攻击提供VoIP服务的服务器是不可能的。 D.VoIP的应用可能会降低计算机网络中其他应用的性能。
查看答案
热门标签
最新试卷