[Asterisk-Users] audio delay ISDN

[Michiel van Baak]

> ----- Originele Bericht -----
> Van: Florian Overkamp
> Aan: michiel at terrazur.nl, Asterisk Users Mailing List - Non-Commercial Discussion 
> Datum: Monday, 10 January 2005, 10:16 
> Onderwerp: RE: [Asterisk-Users] audio delay ISDN
> 
> Hi, 
> 
> > -----Original Message-----
> > 2 ISDN cards (0000:00:0a.0 Network controller: Cologne Chip 
> > Designs GmbH ISDN network controller [HFC-PCI] (rev 02) )
> > The Hisax module is loading ok.
> > 
> > Now everything works ok. we managed to get a ok dialplan 
> > working for internal phones and all 8 phone numbers we have 
> > on the ISDN lines.
> > We have one annoying problem tho.
> > There is an audio delay on outgoing/incoming calls.
> > The delay is 2 to 3 seconds.
> > 
> > Internal calls from sip to sip is no problem at all.
> > 
> > Any idea what is wrong with our setup ?
> > If you need more info and/or config files please ask.
> 
> Which channel driver are you using ? Modem/ttyI1 etc. ?
> 
> The isdn4linux implementation causes this issue. If you can, please switch
> to zaphfc from the bristuff package (see www.junghanns.net/asterisk)
> 
> Get the latest version at
> http://www.junghanns.net/asterisk/downloads/bristuff-0.2.0-RC3.tar.gz
> 
> Florian
Yes, I'm using the modem_i4l.so

Is there a way to install those patches when using the debian * packages ?
Or do I really have to deinstall it all and compile from source ??

Met vriendelijke groet,

Michiel van Baak
Terrazur