[asterisk-users] Max amount of concurrent calls on and iax trunk

[Chris Brentano]

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>