[Freeswitch-dev] FreeSwitch + ISDN + analog phone adapters - status

[Brian West]

Can you elaborate on this G.711 at 6ms?  I have never seen this odd  
number.

/b

On Jan 30, 2009, at 9:30 AM, Jan Berger wrote:

> hi Hans,
>
> The standard for a PABX on G.711 is 6ms packaging of data - this is  
> 48 byte per channel. If you go higher than this you start getting to  
> much latency, if you go lower than this you start using to much CPU.
>
> 400 byte is 50ms, meaning we have spent a lot of the latency budget  
> already here, but this shoud be run-time configurable per channel as  
> per need.
>
> - G.711 6 ms
> - IVR is 250 ms
> - 729 10 ms
> - 723 30 ms
>
> etc.
>
> You need to take into consideration that you are on a system with 8,  
> 16 or 32 E1's of whick some is running IVR, others SIP, others  
> swicthing back out on a different E1 etc.
>
> Jan
>

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