Total Bandwidth req for IP Phone

Unanswered Question
Oct 14th, 2008


consider the scenario:

I have centralized deployment.I have branch site which will make a call in ratio of 2:1 (if there is 2 phones one will be active ONcall).

I want to know

1.what will be the Bandwidth required for SCCP registration on CCM for single IP Phone

2.What will the bandwidth requirement for Keepalive messages between branch and data centre for single IP Phone with MGCP as wellas H323

3.Will there be any other thing utilizes the bandwidth if so what are they?



I have this problem too.
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Marwan ALshawi Wed, 10/15/2008 - 16:01

the main thing u need to consider in voip bandwidth

is the codec in use

for example with g711 voice call consude about 64k while with g729 24 this is whiout over head

one more idea

if u are using CAC with CCM one call g711 needs 80k and g729 24k

while with an IOS gatekeeper

g711 needs 128k and g729 16k per call

all above without L2 overhead

good luck

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