[Asterisk-Users] Re: RE: Organization wide

[Jason Kawakami]

----- Original Message ----- 


> My current asterisk box is a Quad Xeon 450 (2mb cache) IBM Netfinity
> 7000. About how many SIP extensions (normal usage) would this machine
> handle?

think about concurrent connections not how many extensions.  there are no
hard and fast rules but i would think that the box you have described could
support +- 70 concurrent connections.  up the RAM to the max the box can
handle and you could squeeze out a few more maybe 10-15.
>
> What about redundancy? How would I implement an auto-failover Asterisk
> box at a remote location, or could I?

you should think about having an * server at each distinct location and
using IAX trunks to tie everything together.  i wouldnt think about doing
this from one box.  also, i am not sure about whether you can have a primary
and secondary SIP proxy with any openly available phones out there.


> snip>
> The only thing that stands out that might not work so well is the 29
> pots lines in a single location.  Ideally you could install a PRI in
> this location, but if not you'll need some other less common hardware
> to handle all those lines.

i agree with matt here.  probably have so many pots because the system in
place didnt support t-1/pri.  just a guess but a t-1/pri is most likely less
expensive from a MRC perspective.
>
> On the IP side, the calls don't actually use up that much bandwidth,
> probably 30kbits/sec/call if you use ILBC.  The only thing you need to
> do is make sure that all the RTP packets are delivered with a higher
> priority.  Either custom queuing or bandwidth reservation or both will
> make everyone's life better.

echo here

Jason Kawakami