asterisk users - Aug 2008 - Max amount of concurrent calls on and iax trunk

hi,
wanted to ask if anybody has experienced setting up two asterisk 1.2 boxes
connected via iax trunk. have u guys ever stress tested the trunks i.e how
many concurrent calls can a trunk handle and whether codec has any effect on
it.
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Rosli Sukri wrote:
> hi,
> wanted to ask if anybody has experienced setting up two asterisk 1.2 
> boxes connected via iax trunk. have u guys ever stress tested the 
> trunks i.e how many concurrent calls can a trunk handle and whether 
> codec has any effect on it.
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What are the hardware specs of the boxes, and what is the speed of the 
connection between them?



-- 
Robin Rodriguez
VoIP/Telecom Engineer
Atlantic.net
1-800-211-9496

I have two Asterisk 1.4 boxes connected via IAX over a VPN tunnel on a  
10Mbit link. We never did any stress testing as it's a temporary  
arrangement, but we've never had any call quality issues or run up  
against concurrent call limitations. I'm mostly routing internal  
extensions over the trunk, and in the case of two floating users I  
have their extensions at each office ring when their DID is called.  
One server is an older Pentium 4 1.7 GHz with 1GB Ram, and the other  
is a Dual Xeon 2.33 GHz with 4GB Ram. As for codec, I'm disallowing  
all except ulaw and gsm, with ulaw the priority codec for hardphones  
(Polycom) and gsm the priority for softphones (X-Lite, Zoiper).

I would expect the limitation you're going to run up against is not  
Asterisk, but the bandwidth between your two systems.


On 6 Aug, 2008, at 10:40 AM, Rosli Sukri wrote:
> hi,
> wanted to ask if anybody has experienced setting up two asterisk 1.2  
> boxes connected via iax trunk. have u guys ever stress tested the  
> trunks i.e how many concurrent calls can a trunk handle and whether  
> codec has any effect on it.
> <ATT00001.c>

If you're using IAX, upgrade to latest 1.4, as there have been a
number of security releases you should apply. Or at least read up and
make sure the 1.2 version is up-to-date.

On Wed, Aug 6, 2008 at 1:40 PM, Rosli Sukri <roslisukri at gmail.com>
wrote:
> hi,
> wanted to ask if anybody has experienced setting up two asterisk 1.2 boxes
> connected via iax trunk. have u guys ever stress tested the trunks i.e how
> many concurrent calls can a trunk handle and whether codec has any effect
on
> it.
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> AstriCon 2008 - September 22 - 25 Phoenix, Arizona
> Register Now: http://www.astricon.net
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>