[Asterisk-Users] Voice Quality

[David]

Andy, 

Thanks for ur reply... Yes.. ServerA has a T400 card (wct4xxp) installed but
serverB got nothing. 

Thanks



-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Andy Hamilton
Sent: Tuesday, May 03, 2005 1:34 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Voice Quality

David:

Bandwidth may be an issue; however, do you have any timing devices
installed? Digium's hardware (or any generic knockoffs) will provide this.
There are also some other ways, such as ztdummy or a usb controller (haven't
used either of these, so I don't know any specifics. Check the Wiki).

-Andy

On 5/3/05, david at ccds.ca <david at ccds.ca> wrote:
> Hello,
> 
> I have setup two * servers and they are communicating using IAX. I'm 
> passing calls from SRV A (internet connection T1) to SRV B (internet
> connection: 512).
> 
> For some reasons I have an issue with the quality. The voice is a bit 
> scratchy. I have tried iLBC and SPEEX, but it didn't make any difference.
> 
> Now, assuming that I have an issue with Bandwidth, what would be the 
> best way to configure my iax.conf. (A bit confused about jitterbuffer 
> and tos)
> 
> Here is my iax.conf @ location A:
> 
> [general]
> port=4569
> bandwidth=low
> disallow=all
> allow=ilbc
> ;allow=ulaw
> ;allow=speex
> jitterbuffer=200
> jitterbuffer=yes
> tos=lowdelay
> 
> and iax.conf @ location B:
> 
> [general]
> port=4569
> bandwidth=low
> disallow=all
> allow=ilbc
> ;allow=ulaw
> ;allow=speex
> jitterbuffer=200
> jitterbuffer=yes
> tos=lowdelay
> 
> [guest]
> type=user
> context=default
> callerid="Guest IAX User"
> disallow=all
> allow=ilbc
> 
> Thanks guys
> 
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