[Asterisk-Dev] echo, delay and dropped packets in channel driver

[Ben Kramer]

Hi Boris,

as it also appears to just be a ast bridge interaction issue, not just a
SIP issue, I doubt this will help.

Cheers,

Ben.

On Thu, 2005-11-03 at 18:01 +1100, Boris Bakchiev wrote:
> Perhaps the async patch will help you with this.
> Its will use independent timing for in/out channels.
> http://bugs.digium.com/view.php?id=5374
> 
> 
> >Asterisk is just the "slave" of the incoming SIP frames.  So as it 
> >receives them it sends them out to the outgoing channel.
> 
> >Now the sirrix is externally synced to the ISDN line so can only send
> out 
> >audio at the rate clocked by the line.
> 
> >So the excess samples accumulated in a buffer in the sirrix kernel
> driver.
> >Worse, when the buffer filled, the channel driver actually waited for
> the 
> >write - which then caused trouble for other things as the thread got 
> >blocked.
> 
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