[Asterisk-Users] Perplexed - IAX trunk == jitterbuffer or nojitterbuffer

[Jason Walker]

Thank you for the reply. All of the serves are running 1.0.9.

If jitterbuffer and the like are not available, why have those options
available from the non-CVS/HEAD release and in a series that does not
support such features. I don't seem to recall reading that anywhere else -
not an argument against your reply, just a comment of documentation lacking
a key element (versions, etc.)

Do the bandwidth and TOS settings work for IAX? Any recommendations for
those two variables? Are they independent of each other or are they
interchangeable?

Again, thanks for your reply, Steve. 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
steve at daviesfam.org
Sent: Thursday, October 13, 2005 5:20 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Perplexed - IAX trunk == jitterbuffer or
nojitterbuffer



On Wed, 12 Oct 2005, Jason Walker wrote:

> 
> I have 4 * servers interconnected with IAX trunks. Three are on a 
> local LAN, one is accessible over a VPN tunnel out of the office. The 
> IAX peer status
> (iax2 show peers from the CLI) will sometimes show upwards of 300ms.
> Considering the lag and distance, I am not entirely surprised.
> 
> Anyway - my question falls towards the jitterbuffer settings in the 
> iax.conf.
> 
> Should I or should I not? I seem to come across one document that says 
> to do it to only find another document that says this is not the best 
> option for my particular installation. So I am now perplexed.

Hi Jason,

You need to tell us which Asterisk version you are using.  In the 1.0
series, trunking and the jitter buffer won't work together - the trunking
process mangles frame timestamps in a way that the jitter buffer can't
handle.

In CVS-HEAD/1.2, you can optionally have trunked frames include extra
timestamp info so that the jitter buffer can still work.

Regards,
Steve

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