Re: [asterisk-users] Serving 120 concurrent calls

[Tzafrir Cohen]

On Thu, Mar 12, 2009 at 09:42:28PM +, Tarek Sawah wrote:
> 
> Hello, 
> a local prison contacted us regarding some calling card solution. 
> they need 4 E1s to serve 120 rooms in that prison.

120 concurrent calls? (do you assume that most of those lines will be
busy most of the time?)

Normally they aren't.

You also didn't mention what type of outgoing lines / trunks /
whatever-you-call-it you had in mind.

> we are planning on using 4 servers to serve the calls and one for the 
> database servers' specifications are:

If you have any trunks: where are they from in any of those servers?

> 2.8 Dual Core Proccessors
> 2 GB Ram
> 160 Sata Drive
> each server will be provided with 1 E1 card
> Questions are:
> 1- will those servers be able to handle that ammount of calls?'

Sure. I suspect you have a slight overkill (maybe with too many points of
failure)

-- 
   Tzafrir Cohen
icq#16849755  jabber:tzafrir.co...@xorcom.com
+972-50-7952406   mailto:tzafrir.co...@xorcom.com
http://www.xorcom.com  iax:gu...@local.xorcom.com/tzafrir

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Re: [asterisk-users] Serving 120 concurrent calls

[David Quinton]

On Thu, 12 Mar 2009 21:42:28 +, Tarek Sawah
 wrote:

>
>Hello, 
>a local prison contacted us regarding some calling card solution. 
>they need 4 E1s to serve 120 rooms in that prison.

If there's only one person per room, then I'm not sure that they need
*4* E1s if you think about it...


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Re: [asterisk-users] Serving 120 concurrent calls

[Gordon Henderson]

On Thu, 12 Mar 2009, Tarek Sawah wrote:

>
> Hello,
> a local prison contacted us regarding some calling card solution.
> they need 4 E1s to serve 120 rooms in that prison.
> we are planning on using 4 servers to serve the calls and one for the database
> servers' specifications are:
> 2.8 Dual Core Proccessors
> 2 GB Ram
> 160 Sata Drive
> each server will be provided with 1 E1 card

I'm rather surprised that you're using 4 servers - especially when I have 
1GHz boxes handling a full E1 lines without breaking into a sweat...

> Questions are:
> 1- will those servers be able to handle that ammount of calls?'

Just ONE of those servers ought to be able to handle all those calls. 
You're not doing any transcoding, so it's just a data moving platform.

They (Digium, etc.) make 4-port E1 cards... What sort of processor do you 
think those ought to be connected to?

> 2- the important issue is that they require call recording on all 
> calls.. which means we will have to record ALL calls going out of the 
> system .. which means we will need a call recroding.. will the four 
> Asterisk servers handle the recording process or we will need external 
> assistant? and if it was the second choice what is the best suggestion? 
> is there a way to force an Asterisk server to record remote channels?

Do the sums: 120 x 64Kb/sec x 2 = 15360Kb/sec or 1920KB/sec or just under 
2MB/sec. Any PC built this decade can do that.

Of-course multiple servers could be for some sort of redundancy setup... 
But if not, I'd be really surprised if just one box had any issues with 
that call volume.

Gordon

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Re: [asterisk-users] Serving 120 concurrent calls

[Klaus Darilion]

There was already lots of discussion, e.g. google for
   asterisk monitor nfs
or
   asterisk monitor ramdisk

regards
klaus

Tarek Sawah wrote:
> Hello,
> a local prison contacted us regarding some calling card solution.
> they need 4 E1s to serve 120 rooms in that prison.
> we are planning on using 4 servers to serve the calls and one for the 
> database
> servers' specifications are:
> 2.8 Dual Core Proccessors
> 2 GB Ram
> 160 Sata Drive
> each server will be provided with 1 E1 card
> Questions are:
> 1- will those servers be able to handle that ammount of calls?'
> 2- the important issue is that they require call recording on all 
> calls.. which means we will have to record ALL calls going out of the 
> system .. which means we will need a call recroding.. will the four 
> Asterisk servers handle the recording process or we will need external 
> assistant? and if it was the second choice what is the best suggestion? 
> is there a way to force an Asterisk server to record remote channels?
>  
>  
> -- AHD Tarek Sawah Integrated Digital Systems CCNA, MCSE, RHCE, VoIP 
> Syria: +963 944 618286 USA: +1 347 562 2308
> 
> 
> Express your personality in color! Preview and select themes for 
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