asterisk users - Jan 2007 - Dimensioning a 50 sip phone installation

Hi,

Some help with dimensioning the server will be gladly accepted.

-50 sip phones (g729) or g711(to avoid transcoding) in LAN
-an asterisk server (1.4) doing normal pbx functions + voicemail in the same LAN
-Some sporadic conferencing with no more than 2 sip phones and maybe 2
or 3 calls coming from the E1 for a total of 5 people in a conference.

The asterisk server will get an E1(pri) via one fonebridge (TDMoE)

I was thinking of an HP DL140 with two 250gig sata disks and one
3.8Xeon CPU with 2gig RAM.

Also, does a fonebridge setup suffers from the fact that 1.4 has no
PRI/R2 support (as said in a previous post by someone else).

-- 
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama, Republica de Panama
Cel Panama. +(507) 6694-4780
------------------------------------------------------------

Hi Erick -
> Some help with dimensioning the server will be gladly accepted.
>
> -50 sip phones (g729) or g711(to avoid transcoding) in LAN
> -an asterisk server (1.4) doing normal pbx functions + voicemail in the
same LAN
> -Some sporadic conferencing with no more than 2 sip phones and maybe 2
> or 3 calls coming from the E1 for a total of 5 people in a conference.
>
> The asterisk server will get an E1(pri) via one fonebridge (TDMoE)
>
> I was thinking of an HP DL140 with two 250gig sata disks and one
> 3.8Xeon CPU with 2gig RAM.
You'll do absolutely fine with this setup.  I have an office that has
about the same amount of phones and traffic as this (all using g711),
but probably with quite a bit more conferencing.  It runs on a Xeon
2.8ghz, 1GB Ram, 2 73 GB SCSI Raid 1.

> Also, does a fonebridge setup suffers from the fact that 1.4 has no
> PRI/R2 support (as said in a previous post by someone else).
I've been considering buying one of these, but don't have one yet.  If
anyone can comment, I'd like an answer, too.

- Noah

what if I go with full g711-no transcoding?
remember that I will have an E1 coming in, so my usage can be up to 30
channels at once.
if that is an overkill machine config, and for obvious reasons I cant
use old hardware, what are your suggestions?

thanks,


On 1/5/07, Luki <lugosoft@gmail.com> wrote:
> > I was thinking of an HP DL140 with two 250gig sata disks and one
> > 3.8Xeon CPU with 2gig RAM.
>
> Should be plenty if not an overkill. One of our setups: 20 phones, 8
> outgoing/incoming SIP trunks, MeetMe conferencing with ztdummy and no
> Zap hardware. IVR/voice mail/MOH/Recordings/etc. Runs on a single
> PIII-600, 256 MB RAM. CentOS 4.4 with a stock 2.6.9-42 kernel.
> Asterisk 1.2.5, in production for 1.5+ years. CPU usage about 2% per
> call. Quite reliable (hence not upgraded). This is a g711 only setup
> with no transcoding.
>
> --Luki
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-- 
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama, Republica de Panama
Cel Panama. +(507) 6694-4780
------------------------------------------------------------