多项选择题
What are two steps that are taken when a router converts a voice signal from analog to digital form?()
A.sampling B.packetization C.quantization D.serialization
单项选择题 WhichstatementistrueaboutadistributedcallcontrolenvironmentandtheprocessingofdialeddigitsfromanIPphone?()
多项选择题 WhataretwomajorsourcesofdelaythatcanbemanagedbyQoSinvoice-enablednetworks?()
多项选择题 Whichtwostatementsaretrueaboutvoiceportsonarouter?()