单项选择题

AcmeCompanyhasseveralofficesaroundthecountry.ThecompanyhasdeployedaVoIPnetworkwithCiscoUnifiedCallManagerinamultisitecentralizedconfigurationbutthereisarequirementtoplaceacallagentatsomeoftheremotesites.WhichIOSgatewayfeatureshouldbedeployedattheremotesitetoenablelocalcallcontrol？（）
A.Gatekeepermultizone
B.CallAdmissionControl（CAC）
C.AutomaticAlternateRouting（AAR）
D.SurvivableRemoteSiteTelephony（SRST）
E.CiscoUnifiedCallManagerExpress（CME）

A.ThecompanyhasdeployedaVoIPnetworkwithCiscoUnifiedCallManagerinamultisitecentralizedconfigurationbutthereisarequirementtoplaceacallagentatsomeoftheremotesites.WhichIOSgatewayfeatureshouldbedeployedattheremotesitetoenablelocalcallcontrol？（）
A.Gatekeepermultizone
B.CallAdmissionControl（CAC）
C.AutomaticAlternateRouting（AAR）
D.SurvivableRemoteSiteTelephony（SRST）
E.CiscoUnifiedCallManagerExpress（CME）

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