[asterisk-users] twenty thousands (20, 000) users, which asterisk and how many servers

[bilal ghayyad]

Dear;

So it is a hardware issue and not software? 
I am afraid that asterisk software it self is not able to support 20 000 users and 2000 concurrent calls.

About the high availability: is there a method that if the first asterisk server down, then the call will stay connected and failover to second asterisk server?

Regards
Bilal

--------------
> 
> 20.000 users is really a big number, as big as 2000
> concurrent calls.
> As previously stated on this list, it depends... it depends
> by the type of
> calls for example. If all media is offloaded from the server
> letting the
> phones to reinvite each other, than your server CAN support
> the call
> volume. If instead even a tiny portion of the call volume
> uses service on
> the pbx, like IVR, music on hold, conferences, queues or
> even worst,
> transcoding, then the server is obviously underpowered. From
> my point of
> view, servicing 20.000 users with a single piece of hardware
> is highly
> risky. It can broke in the middle of the day, leaving all
> your users
> without service. I think a better approach will be to have
> more less
> powered servers working all together to serving your users.
> If a day one or
> two of them broke, you have not to worry because the other
> will continue to
> serve your users and nobody notice the little decrease in
> power.
> There are a lots of way to achieve the high availability,
> load sharing,
> each with its pros and cons.
> Right now I am building a pbx with high availability and
> load sharing in
> mind, for a client who wants to achieve numbers you have
> just said. Let's
> see how it works in few months.
> 
> Leandro
> 
> 2012/5/23 bilal ghayyad <bilmar_gh at yahoo.com>
> 
> > Hi All;
> >
> > I need to use Asterisk for 20 000 users, so which
> asterisk version to be
> > used? Is there asterisk version that supports 20,000
> users on one hardware
> > machine?
> >
> > Can I use one strong hardware server i7 with 64 GB RAM
> and fast hard desk
> > to handle 20 000 users, and concurrent calls 2000? Or I
> need multiple
> > servers, how much?
> >
> > If I am going to use multiple servers (until now I do
> not know how much,
> > and I do not know if the barrier will be the asterisk
> software or the
> > hardware), then do I have to use special SIP proxy or I
> have to use load
> > balancer)? In this case, I have to use asterisk
> Database (so all the
> > servers will read/write from the database)?
> >
> > What about AsteriskNow, can it support?
> >
> > Regards
> > Bilal