多项选择题

In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？（）

A. H·323
B. UDP
C. RTP
D. TCP
E. Media Gateway Control Protocol （MGCP）
F. session initiation protocol （SIP）

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热门试题

单项选择题

AcmeCompanyhasseveralofficesaroundthecountry.ThecompanyhasdeployedaVoIPnetworkwithCiscoUnifiedCallManagerinamultisitecentralizedconfigurationbutthereisarequirementtoplaceacallagentatsomeoftheremotesites.WhichIOSgatewayfeatureshouldbedeployedattheremotesitetoenablelocalcallcontrol？（）

A. Gatekeeper multizone
B. Call Admission Control （CAC）
C. Automatic Alternate Routing （AAR）
D. Survivable Remote Site Telephony （SRST）
E. Cisco Unified CallManager Express （CME）

单项选择题

UsingtheG.729codecandthedefaultcRTPconfiguration，whatistheapproximateVoIPbandwidthsavingsacrossaFrameRelaylinkthataddsa6byteframeheader？（）

A. 55%
B. 58%
C. 60%
D. 63%

In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？ （）

In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？（）