Some tricks:
If you have a high latency link, watch out i've experienced problems
with it in the past. (high latency = > 300ms)
Stay away from trunking unless you have a lot of time to spend, if you
do use trunks, do not use a jitter buffer, make sure it works in both
directions and don't make it too big (although that might be fixed in
more recent asterisk versions, there was a patch included for it).
If you use a VPN, make sure it is UDP based, and check it for low latency.
Make sure both asterisk's are on a public ip. (Although you should be
able to connect to an asterisk B registered to Asterisk A, it - at least
used to - not work very well in production).
If you do a lot of simultaneous calls, make sure your vpn servers can
handle the load.
Zoa
www.asteriskguru.com
Michelle Dupuis wrote:
You will likely have latency issues - causing choppiness. Start with a
traceroute to validate latency.
Michelle Dupuis
Technical Support Specialist
Generation Software - Linux and Asterisk solutions and support
Visit us at www.generationd.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Asterisk
Sent: Friday, March 02, 2007 10:26 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [asterisk-users] IAX best practices
Thanks Steve!
What are usually the best approaches in troubleshooting the audio quality
issues and QoS related stuff when putting two Asterisk boxes together via
IAX?
Have you ever tried connecting Asterisk boxes in the same VPN (but still in
different countries)?
Regards,
Alex
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Totaro
Sent: Thursday, March 01, 2007 4:22 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] IAX best practices
Asterisk wrote:
Hi guys,
I am planning to connect two Asterisk boxes that are currently running
in two different countries, using IAX.
I was wondering if anyone could provide me with some links or
suggestion
regarding best practices in connecting two Asterisk in such way. I
guess
many of you have already tried this, and already have some know-how
(what I should be careful about, what to avoid, etc...)?
Regards,
Alex
Bandwidth and latency. IAX2 is remarakably good at traversing NAT and even
double NATs. It should just work. The issues that I ran into are low
bandwidth and latency. Not much you can do about latency besides getting a
better route and putting QoS on your equipment and hoping that
your provider either observes your tagging or is not very latent to begin
with. The other is bandwidth which I found SPEEX works wonders (but adds to
latency).
In my experience, bandwidth issues result in choppy audio and latency
results in delays which cause people to talk on top of each other and can be
extremely annoying.
Try pinging a router or device at the remote side to get an idea of how
latent your connection will be.
Thanks,
Steve
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
