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Network managers have long(140)practical voice-over-IP(VOIP)solutions. VOIP(141)ease network management and decreases costs 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(142)tremendous amounts of(143)in long distance phone bills, provided that solution delivers POTS-like voice(144)over the Internet.
A．await
B．awaited
C．awaiting
D．awaits
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更多 “ Network managers have long(140)practical voice-over-IP(VOIP)solutions. VOIP(141)ease network management and decreases costs 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(142)tremendous amounts of(143)in long distance phone bills, provided that solution delivers POTS-like voice(144)over the Internet.A．awaitB．awaitedC．awaitingD．awaits ” 相关考题
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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
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Which of the following is a performance optimization technology?()
A.QoSB.TrunkingC.SpanningD.VoIP
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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。
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