[Asterisk-Users] 5,000 concurrent calls system rollout question

[Erick Perez]

5k+ simultaneous calls (in/out) are becoming normal with the kind of
call centers being opened in my country during the past 24 months
(Panama, Central America).

Take Dell Corp.  for example. the call center they have here is about
3k people taking/making calls (internal, to/from US, Europe, Asia).
Other Call Centers are in that figure too.

For me, this thread seems a good learning point to calculate how to do
that with asterisk.

Thanks to the people who answered here.

On 1/30/06, Kristian Larsson <kristian at netatonce.se> wrote:
> On Mon, Jan 30, 2006 at 12:49:15PM +0100, janvb at caselaboratories.com wrote:
> >
> > >Using G711A (ie, "worst case" bandwidth wise):
> > >it's 64kbit/s not 64Kbyte/s
> > >so it's 320Megabits per seconds
> > >
> > >
> > That will only do if you talk a lot with your mother in law! ;-)
> >
> > For the rest of the conversation (those with both speaking):
> >
> > 5000 * 64k * 2 = 640M
> Indeed you are correct, I'll defend myself with
> stating that I presumed we were talkin "full duplex" ;)
> >
> > It should in theory work with a 1Gbits Ethernet, but you would be
> > counting on ca 65% utilization. I would normally plan with < 30-40 %
> > utilization and you need 2 for redundancy anyway.
> Though now you're wrong ;)
> 65% isn't correct. If you're counting both in and
> out traffic you'll have to assume that the Gigg
> card is capable of 1Gbps in each direction thus
> 2Gbps in total and 640M of 2000G is about 30% or
> just as much as 320M is of 1G.
>
> I don't know the average packet size of a voice
> RTP packet but I guess it's quite small. Being a
> network guy I've dealt quite a lot with software
> routers and a normal Linux machine can forward
> about 500kpps, and this is mere forwarding if you
> run this via Asterisk you should probably split
> that by ten.
>
>
> --
> Kristian Larsson, Net At Once AB
> Email: kristian at netatonce.se
> Phone: +46 470 592717
> Cell: +46 704 910401
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>


--

-------------------------------------------
Erick Perez
Linux User 376588
http://counter.li.org/  (Get counted!!!)
Panama, Republic of Panama