Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises(71)network management and decreases costs by(72)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(73)tremendous amounts of(74)in long distance phone bills, provided that solution delivers POTS -like voice(75)over the Internet.
A.complicated
B.useful
C.ease
D.orderly
第1题:
在VoIP系统中,通过(37)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
第2题:
A.switchportpriorityextendtrust
B.mlsqostrust
C.switchportpriorityextendcos7
D.autoqosvoipcisco-phone
第3题:
A.Auth(认证);
B.Auth(认证)、Link(链路)、VOIP(语音);
C.VOIP(语音)
第4题:
A.QoS
B.Trunking
C.Spanning
D.VoIP
第5题:
A.SIP
B.RTSP
C.H.323
D.MGCP
第6题: