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VoIP
VOIP - Voice Over Internet Protocol
"In the long term, enterprises will find that
there is no way around VoIP. This is one of the results
of IP Convergence, where voice, data and video merge
for state-of-the-art applications on IP. One of users’
fundamental VoIP demands is a voice quality similar
to that which they get in conventional telecom networks.
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Voice over IP takes standard voice signals and
encodes them using IP. At present most voice signals
are carried using circuit switched bearers where
a channel is set up and maintained between the
calling and called parties for the duration of
a call.
Using IP results in a very different arrangement
where the voice is divided into packets and each
packet is sent separately. The benefits of this
are that the total bandwidth required can be reduced
since nothing need be sent when the caller is
not speaking.
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