[Asterisk-Users] Strange Quality problems with Asterisk, Gentoo, Redhat and Kernels - /dev/dsp

[Brian West]

Good call!!! :)

bkw

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Michael Bielicki
> Sent: Wednesday, September 29, 2004 11:52 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Strange Quality problems with Asterisk,
> Gentoo,Redhat and Kernels - /dev/dsp
> 
> even better, use anthm's moh patches and don't use mpg123 at all
> 
> 
> On Wed, 29 Sep 2004 11:36:15 -0500, Brian West <brian at bkw.org> wrote:
> > Do not use portage for zaptel, asterisk or libpri.  That's the bottom
> line.
> > Also do not use portage for mpg123.
> >
> > bkw
> >
> > > -----Original Message-----
> > > From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> > > bounces at lists.digium.com] On Behalf Of Deon Rodden
> > > Sent: Wednesday, September 29, 2004 9:56 AM
> > > To: asterisk-users at lists.digium.com
> > > Subject: [Asterisk-Users] Strange Quality problems with Asterisk,
> Gentoo,
> > > Redhat and Kernels - /dev/dsp
> > >
> > > I've compiled Asterisk on Redhat 9 and Fedora Core 1 in the past,
> > > generally without any problems. Especially w/ the stock kernel, which
> I
> > > generally loathe. When I tried to upgrade my Redhat 9 Server to the
> > > 2.4.27 kernel, doing a manual/clean compile, I had massive quality
> > > issues. I was forced to go back down to a stock 2.4.24 kernel. Never
> > > figured out why.
> > >
> > > Now, I've installed Gentoo and am using the 2.4.26 kernel, and things
> > > initially appeared ok. I emerge'd Asterisk, the dependencies were
> > > downloaded compiled, Asterisk 0.9.0 was compiled, I then used cvs to
> > > update to the latest libpri/zaptel/asterisk. Everything seemed fine.
> > > However, I'm noticing the occasional quality issue. First I just
> thought
> > > the music on hold was a little choppy, but that always seems normal, I
> > > blamed the zaprtc/rtcsetup thing I'm using to get zaptel timing.
> > >
> > > But then we noticed problems with Grandstream phones. The grandstream
> > > would connect to the Gentoo Asterisk Server via SIP, then go out via
> IAX
> > > across a T1 to the main asterisk server (Redhat 9), which then pushes
> > > the call via SIP to a Cisco Router that's connected to several PRI's.
> My
> > > last clue therem ay be a problem with Gentoo is the T1 card we put in
> > > another server. We put a T100P in another Gentoo server, therefore
> > > didn't need zaprtc/rtcsetup, and it uses pri-net to simulate a Voice
> T1
> > > PRI for a PBX system. Calls will come in via IAX2, from my main
> asterisk
> > > server, and it will then (using Zap) go out the T100P into the PBX.
> > > There's an intermittant quality issue there as well.
> > >
> > > The only clues in the log files was something about /dev/dsp missing.
> > > This didn't seem a big deal, music on hold worked, etc. but I noticed
> > > that /dev/dsp existed on my redhat machines, even though they're the
> > > same servers, no sound cards or anything. The kernel on the Redhat
> > > machines was compiled with several sound card modules, but nothing
> > > integrated. An 'lsmod' reveals a module called soundcore loaded, but I
> > > can't find soundcore on my Gentoo machines.
> > >
> > > Is there anything mandator in the compilation of the kernel that will
> > > affect Asterisk's quality? The CPU load on the systems is nothing.
> > > Everything "appears" normal. The only common factor is custom compiled
> > > kernel. A custom compiled 2.4.27 on Redhat had problems, and a Custom
> > > Compiled 2.4.26-gentoo on Gentoo has not-so-apparent problems too.
> I've
> > > always been on top of the latest CVS updates on Zaptel/Asterisk/libPRI
> > > _______________________________________________
> > > Asterisk-Users mailing list
> > > Asterisk-Users at lists.digium.com
> > > http://lists.digium.com/mailman/listinfo/asterisk-users
> > > To UNSUBSCRIBE or update options visit:
> > >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >
> >
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> 
> 
> 
> --
> Michael Bielicki
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users