estimating VoIP data traffic size from VoIP signaling traffic size ?

Blaine Christian blaine at blaines.net
Sun Oct 23 11:28:33 UTC 2005


Your signaling traffic will be incredibly low compared to your RTP  
streams (especially for G.711u).  For G.711u if 2Mbps is your peak  
think somewhere in the range of 10kbps or so (complete SWAG but I  
hope you get the picture).

Use about 100k per call for 711u and it will help make the numbers  
nice and round.  If you are trying to calculate busy hour search for  
Erlang on your nearest web confabulator.  There are also innumerable  
spots on the web where you can find typical numbers for various codecs.

On Oct 22, 2005, at 1:34 PM, Joe Shen wrote:

>
> Hi,
>
>
> is there any statistics on aggregated VoIP signaling
> bandwidth and aggregated VoIP data bandwidth? eg. if
> we monitored there is 2Mbps(average) traffic on VoIP
> signaling protocol ports ( including SIP, H.323,
> MGCP), how could we estimate average VoIP data
> bandwidth?
>
> Joe
>
>
>
>
>
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