[asterisk-biz] Low Bandwidth VoIP

[kishor Kabir]

IAX2 trunk can be done. It will manage more concurrent calls.

On Mon, Jul 16, 2012 at 3:01 PM, Stelios Koroneos <
skoroneos at digital-opsis.com> wrote:

> On Fri, 2012-07-13 at 22:55 +0600, Alex jhon wrote:
> > Hello All,
> >
> >
> > I have 250kbps uplink bandwidth. is there any possibility that i can
> > run 32 channel GSM-VoIP gateway using this? I need to deploy VPN too.
> >
> >
> > Thank You
> > Alex
>
>
> The short answer is no you can't get 32 *concurrent* channels on a
> 250kbps uplink
>
> With G729 as a codec you need around 32kbits per channel including the
> overheads from the voip protocol and tcp etc, so that would give you
> around 7 *concurrent* channels.
> Even with G723 at 20kbits per channel you could get a max of 10-11
> concurrent channels.
>
>
>
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