[Asterisk-Users] Very bad quality with AVMFritz!cardPCIandchan_capi

[Benjamin Sebbah]

> > > > > > Hi everyone,
> > > > > > 
> > > > > > I have Asterisk SVN-trunk-r7498 running for a few months and
I'm quite
> > > > > > happy with it. However, I am experiencing a quality issue
with my AVM
> > > > > > Fritz!card PCI which is used with chan_capi. When somebody
calls me on
> > > > > > this line he hears a lot of noise and I hear "scratches" and 
> > > > > > "plops". It
> > > > > > is very annoying. Below is is my /etc/asterisk/capi.conf 
> > > > > > I've tried to play with echotail and echosquelch but the
quality is
> > > > > > always terrible. 
> > > > > > 
> > > > > > Any suggestion is welcomed.
> > > > > > Ben


> > > > > I can see that IRQ 17 is shared between eth0 and my fritz!card
but I
> > > > > don't know if it changes anything:
> > > > > 
> > > > > Ben

> > > > Can you try it (or eth0) in a different slot (or change IRQ's in the
> > > > BIOS if possible) to see if it makes any difference? That's the
only way
> > > > to know for sure, anything else is just speculation :)
> > > >
> > > > James


> > > Unfortunately I can't, because the LAN board is integrated and I 
> > > haveno
> > > PCI device left anymore.
> > >
> > > Ben 

> > You seem to have 2 wctdm adapters. Can you swap one of them with the
fritz card?
> > I'll try the usb trick first, and then if it doesn't work I'll try to
> > swap one of the TDM400 with the fritz. But I can't do it now because
> > people in my company won't be able to phone while I do that, which is
> > completely impossible.
> > 
> > Ben 

> Yep. It's always the users causing problems!
> 
> Good luck!
> 
> James

So I've just had the time to swap and disable usb in my bios and it
changed nothing the quality is still the same (which means horrible).
How could I check where the problem comes from?

Ben