[Asterisk-Users] Voice Quality

Boris Bakchiev boris at jildent.com.au
Tue May 3 23:49:28 MST 2005


I would use g.729, and if this is an issue, GSM.
Setup trunking between both IAX peers so that you can save a lot of
bandwidth.



> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of david at ccds.ca
> Sent: Wednesday, 4 May 2005 00:52
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Voice Quality
> 
> 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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