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
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.SIP
B.RTSP
C.H.323
D.MGCP
第3题:
第4题:
A.QoS
B.Trunking
C.Spanning
D.VoIP
第5题:
A.Auth(认证);
B.Auth(认证)、Link(链路)、VOIP(语音);
C.VOIP(语音)