送交者: enable 于 2004-12-30, 21:38:18:
回答: the advantages are from multiple respects, one is the packet multiplexing 由 AA 于 2004-12-30, 20:24:46:
WHY not reconstruct current voice on telephone network to improve multiplexing and digital compression since steven said whatever backbone it is, it already fully digitialised in backbone transmition.
Does this kind of reconstruction cost too much or Does Ip is too popular to avoid, simply because datacom industry wants to use this to compete with traditinal telecom.
thoese two industries are always too mysterious to me :(