Whendeterminingacustomer’stechnicalrequirementsforaCiscoUnifiedCommunicationssolution，whichimportanttoolcanbeusedtodeterminethebandwidthusedbydifferentcodecswithvariousprotocolsoverdifferentmedia？（）
A. NetworkCodecAggregatorTool
BandwidthEstimatorTool
C. UnifiedCommunicationBandwidthTool
D. VoiceBandwidthCalculator
E. VoiceCodecBandwidthCalculator
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乘坐电梯时，若电梯中有服务生，位低者应该先进先出。（)
Whatwillcausewirelessvoicedevicestoperformpoorly？（）
A. averagesignalstrengththatisgreaterthan-67dBi
B. celloverlapof15to20percent
C. unevenwirelesscoverage
D. absenceofcoverageholes
WhichkeypadsequencewillresettheCiscoUnifiedWirelessIPPhone7921tofactorydefault？（）
A. ***
B. **#
C. **1
D. **2
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