[Asterisk-Users] iaxtel and jitterbuffer

Michael George george at mutualdata.com
Sat Aug 28 12:24:01 MST 2004


On Sat, Aug 28, 2004 at 03:00:26PM -0400, Michael George wrote:
> On Sat, Aug 28, 2004 at 08:39:50AM -0600, Rich Adamson wrote:
> >  
> > I do a lot of work with companies throughout the US on network performance
> > and we _frequently_ run into routers, switches, servers, etc, that are
> > allowed to auto-negotiate their half vs full duplex nic interfaces. About
> > 50% of the time, systems will get it wrong as there are no standards as
> > to how the negotiation should be done.
> > 
> > A recent case this past week indicated that data flow between two servers
> > on the same layer-2 network was around 400 kbps when it should have been
> > able to sustain at least 80 meg.
> > 
> > You might double check each of your ethernet interfaces to ensure duplex
> > settings are correct. If not at full duplex all the way through, you'll
> > run into the strangeness you're seeing under varying traffic loads.

I just saw a page on the wiki that mentions that running X11 or a VESA frame
buffer can cause jittery sound.  I only have this problem with IAX2, but that
might be cause when I use Zap <--> Zap or Zap <--> SIP there is no en/decoding
involved.

I am running * on my main home server, which does run X and other software.
Perhaps that's the problem?  Maybe if I juiced it up with more RAM, might that
help?  It's at .5GB now, but I can easily take it to 1GB.  Or, maybe a 900MHz
Athlon still can't handle the coding with X11 running?

-- 
-M

There are 10 kinds of people in this world:
	Those who can count in binary and those who cannot.



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