I'm not expert on this topic but I think to get a more accurate answer you you provide more detail on the the box is going to be use for.  Dedicated or shared usage.

For example:   I'm running Fedora 14 x64 w/8gig memory and several terabytes disk storage
It's a dual proc w/ 2x Intel 5160 (dual core)  3ghz  (HP x8400 workstation system board transplanted into a server chassis).  I'm using it as home based media server with 4 clients (DVR& Music), a database, email,web file server.  I just added Freeswitch and see little impact to resources.  My cost off ebay was about $400

For Freeswitch it might be useful to state estimated call volume per hour and number of simultaneous calls and desired features,


-------- Original Message --------
Subject: Re: [Freeswitch-users] Hardware build recommendations
From: curriegrad2004 <curriegrad2004@gmail.com>
Date: Fri, June 08, 2012 2:02 pm
To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>

Try aiming for a 64-bit OS if you could. For the OpenVPN part, if you
could shoot for a Sandy Bridge or later CPU you'd probably find the
AES-NI part of the CPU quite suitable. If you're on a budget you can
always certainly aim for an AMD E-350 or something along the lines of
that. Plenty of CPU power for SOHO boxes.

On Fri, Jun 8, 2012 at 1:23 PM, Brian Foster <bdfoster@endigotech.com> wrote:
> Raspberry Pi?
>
> Shoot for 1.6 ghz dual core with 1gb memory, 2 NICs. That should be overkill
> (engineering translation: bare minimum).
>
> Brian Foster
> Endigo Computer LLC
>
> Sent from a mobile device.
>
> On Jun 8, 2012 2:35 PM, "Timothy Bolton" <ifoundthetao@gmail.com> wrote:
>>
>> Does anyone have any ideas for a good hardware build for a SOHO server?
>>
>> Here's what I'd like running on it: OpenVPN, FreeSWITCH, and a firewall
>> (probably pfSense).
>>
>> My home network doesn't have too much traffic, and I don't get that many
>> calls.
>>
>> --
>> 'We who cut mere stones must always be envisioning cathedrals.'
>> Quarry Worker's Creed
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting@freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
>> http://www.cudatel.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> Join Us At ClueCon - Aug 7-9, 2012
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users@lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting@freeswitch.org
> http://www.freeswitchsolutions.com
>
> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
> http://www.cudatel.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users@lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>

_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://wiki.freeswitch.org
http://www.cluecon.com

Join Us At ClueCon - Aug 7-9, 2012

FreeSWITCH-users mailing list
FreeSWITCH-users@lists.freeswitch.org
http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
http://www.freeswitch.org