[asterisk-users] Re: Choppy sound in voicemail using Asterisk1.2.11 on CENTOS4 guest on vmware server

[Webster, Andrew]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Martin Joseph
> Sent: Saturday, November 11, 2006 15:01
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Re: Choppy sound in voicemail using
> Asterisk1.2.11 on CENTOS4 guest on vmware server
> 
> On 2006-11-10 09:10:30 -0800, Mario François Jauvin
> <mario at mfjassociates.net> said:
> 
> >
> >
> > This is a multi-part message in MIME format.
> >
> > I have had no success in getting the voicemail working on Asterisk
> > 1.2.11 on CENTOS4(2.6 kernel) guest on vmware server 1.0.1.  I tried
> > with or without ztdummy device, renice -20 on asterisk process and even
> > real-time priority on the host Windows XP box for the vmware process.
> > I am running on an AMD Athlon 64 X2 4600+.  The behaviour is when the
> > voicemail answer, the voice sound ok but when asterisk starts saying
> > the digits from the extension, the sound starts becoming very choppy.
> > The voice after the digits is still choppy.  Does anyone have a
> > suggestion?  The codec that asterisk is using with the softphone I am
> > using is the GSM codec.
> >
> If it sounds like the trouble starts when digits are being spoken,
> perhaps it's related to your disk controller?  Is there a zap channel
> involved in this setup (ie how is the phone connected)?
> 
> Don't know much about the whole vmware thing,  but it sounds like an
> interrupt issue perhaps?
> 
> Marty
> 
>

You don't mention what version of kernel you are using.  
There are known issues with certain versions of Kernel when running inside VMWARE.  2.6.9-34 branch works well, 2.6.9-42 does not!

Andrew