[asterisk-biz] Big PBX

[Kendall Ananyi]

what would really help is also posting the stats of the computer
e.gprocessor speed and memory size , whether multipple pcs or a single
pc
e.t.c. instead of saying I can handle xyz no of concurrent calls

On 2/8/07, Alistair Cunningham <acunningham at integrics.com> wrote:
>
> Steve Totaro wrote:
> >> Trixter,
> >>
> >> I can't give you concurrent call figures for these systems as we
> >> haven't got permission from our customers to share this information,
> >> though you can safely assume many more than 200 total concurrent calls.
> >>
> >> The 200 concurrent calls in my previous email is per Asterisk machine
> >> (with all but the smallest Enswitch systems having more than one
> >> Asterisk machine), and is general advice to new customers. The exact
> >> figure will of course depend on hardware, codecs, average call length,
> >> etc.
> >>
> >> Alistair Cunningham
> >> +1 888 468 3111
> >> +44 20 799 39 799
> >> sip:acunningham at integrics.com
> >> http://integrics.com/
> >>
> > How does average call length have anything to do with number of
> > concurrent calls?
>
> Steve,
>
> Enswitch does a set of database queries at the start and end of each
> call to:
>
> 1. Route the call, including things like caller and time of day routing.
> 2. Decide whether the customer has enough credit, and how long to let
> the call run before cutting it off.
> 3. Update the table of active calls.
> 4. Write CDRs.
> 5. Bill the call and update the customer's and any parent resellers'
> and/or affiliates' balances.
> 6. Minor tasks such as updating busy lamps, etc.
>
> If calls are short, these tasks take up a larger fraction of the
> processor time, leaving less processor time available for mid-call tasks
> such as codec translation.
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