[Asterisk-Users] Actual audio bitrates

[Tais M. Hansen]

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On Friday 10 October 2003 19:15, Eric Wieling wrote:
> Check the mailing list.  There are several messages addressing the
> issue.  The main cause of the extra bandwidth usage is IP and UDP
> headers.  VoIP sends small packets and so, many times, the headers are
> actually much larger than the data part of the packet.  IAX2 trunking
> helps with the IP overhead, but only when you are sending more than 2 or
> so calls between the same Asterisk servers.

I knew there would be IP overhead, but that the actual bitrate would be 4 
times that of the codec bitrate (gsm) just seemed wrong to me.

I haven't yet had the chance to test multiple calls through IAX, so I hope 
you're right. :)

- -- 
Regards,
Tais M. Hansen
ComX Networks
Tel: +45-70257474
Fax: +45-70257374
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