[Asterisk-Users] concurrent calls

wasim@convergence.com.pk
Thu, 09 Oct 2003 08:55:52 -0000

On Thu, 9 Oct 2003, WipeOut wrote:

> > actually i meant how to find out how many i could push down the 512k
> > line - with regards to codec bandwidth and signalling etc...
> >
> Measure the data rate on one call and divide 512k by it for a rough
> estimate..
>
> If you want more accuracy make one call and measure the data rate, then
> two calls and then 3 calls and you should start to see a trend in the
> increse in traffic per call..
>
> My tests on one call showed GSM to use about 34Kbps* so you should
> manage 14 concurrent calls.. As a suggestion look at using the iLBC
> codec which in my test on one call used 25Kbps* which will give you
> close to 20 calls in your 512K connection..

of course this is assuming that trunk=no (in IAX atleast)

- wasim