asterisk users - Mar 2007 - Asterisk distributed deployment

Hello all, I post this issue thinking too that could help other people on an
asterisk deployment over distributed offices considering both quality, prices,
devices and so.

Well, i am working on a deployment of a telephony system based in asterisk. My
company have a central office with seven remote offices connected all through a
VPN. To reduce and evaluate costs i consider solutions like:

Asterisk servers  on all locations(central and remote offices) or
Asterisk on Central office plus FXO Gateways on remote offices, all of this
connected through a central asterisk cluster

With the first option i have TDM cards seller that offer me DIGIUM (expensive)
or OPENVOX (less expensive), but because i not have experience with OPENVOX
telephony hardware I cant consider that. So, if Any can give me some good
reasons for use OPENVOX against DIGIUM cards i would have solve this question
because may build IAX trunks on each office.

With the 2nd option I have sellers that offer me gateways:
Quintum Tenor AFT400
Planet VIP-480 FO

But, again, I don't have experience with asterisk and FXO gateways to think
that
it is the best solution amen that is the less expensive solution.

Another solution that i consider is mount asterisk on central office and IP PBX
DIGISTAR preconfigured on remote offices.

On the Users Side I was considering the use of Ata's or FXS Gateways, with
Ata's
I get offers of Audiocodes MP202, GRANDSTREAM HT 386 or Linksys SPA-2002. And
with FXS Gateways sellers offers me Quintum Tenor AXG2400, Quintum Tenor
AFG800

Thanks for any word that can help me to get this VoIP deployment working and
sorry for my english. Cheers

G.

ggonzalez@telviso.com.ar wrote:
> Hello all, I post this issue thinking too that could help other people on
an
> asterisk deployment over distributed offices considering both quality,
prices,
> devices and so.
>
> Well, i am working on a deployment of a telephony system based in asterisk.
My
> company have a central office with seven remote offices connected all
through a
> VPN. To reduce and evaluate costs i consider solutions like:
>
> Asterisk servers  on all locations(central and remote offices) or
> Asterisk on Central office plus FXO Gateways on remote offices, all of this
> connected through a central asterisk cluster
>
> With the first option i have TDM cards seller that offer me DIGIUM
(expensive)
> or OPENVOX (less expensive), but because i not have experience with OPENVOX
> telephony hardware I cant consider that. So, if Any can give me some good
> reasons for use OPENVOX against DIGIUM cards i would have solve this
question
> because may build IAX trunks on each office.
>
> With the 2nd option I have sellers that offer me gateways:
> Quintum Tenor AFT400
> Planet VIP-480 FO
>
> But, again, I don't have experience with asterisk and FXO gateways to
think that
> it is the best solution amen that is the less expensive solution.
>
> Another solution that i consider is mount asterisk on central office and IP
PBX
> DIGISTAR preconfigured on remote offices.
>
> On the Users Side I was considering the use of Ata's or FXS Gateways,
with Ata's
> I get offers of Audiocodes MP202, GRANDSTREAM HT 386 or Linksys SPA-2002.
And
> with FXS Gateways sellers offers me Quintum Tenor AXG2400, Quintum Tenor
> AFG800
>
> Thanks for any word that can help me to get this VoIP deployment working
and
> sorry for my english. Cheers
>
> G.
>   
So what exactly are you asking?

If you want to do it right, put asterisk servers at all of your 
locations and connect them to the PSTN then use LCR in your dialplan to 
route calls within the organization and also route calls out the best 
office as far as TDM rates.  Deploy SIP phones that point to their local 
Asterisk server.  Then if your network goes down at any point, each site 
is fully independent.

If you want to go cheap, you have a VPN, setup the main office with an 
asterisk box with PSTN connectivity and then deploy SIP phones at the 
remote offices that point over the VPN to your main office.

Thanks,
Steve

Steve, Im not asking but looking for a suggest about multiple solutions to the
same problem, Im looking for experinces with hibrid deployments that save me
money, for example sellers offers me TDM04B DIGIUM CARDS about u$s 500 against
u$s 150 for OPENVOX CARDS. Cheers

> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of ggonzalez@telviso.com.ar
> Sent: Thursday, March 08, 2007 12:36 PM
> To: asterisk-users@lists.digium.com
> Subject: [asterisk-users] Re: Asterisk distributed deployment
> 
> Steve, Im not asking but looking for a suggest about multiple
solutions to
> the
> same problem, Im looking for experinces with hibrid deployments that
save
> me
> money, for example sellers offers me TDM04B DIGIUM CARDS about u$s 500
> against
> u$s 150 for OPENVOX CARDS. Cheers
I think you will pay in the long run if you are going to skimp on
U$D350.  Couldn't one dropped call from a prospective "big time"
customer be worth more than U$D350?  Would spending a week of time
trying to get things working correctly be worth U$D350?

I would suggest doing it right and not skimping.  Your phone system
should be transparent and is a direct reflection on your business.

Thanks,
Steve Totaro
http://www.asteriskhelpdesk.com
KB3OPB

I just completed a deployment of 8 sites connected via MPLS, and I
chose to go with the local * servers option and Sangoma hardware at
each site. I then put dundi in place to route calls between sites and
will later look at adding LCR. I'm with Steve on the cards, don't
skimp on cards or even echo canceling. Most of my sited were 2-5
employees and I used Dell Optiplex systems for their servers, overkill
on capabilities, but easy to maintain parts for.

On 3/8/07, ggonzalez@telviso.com.ar <ggonzalez@telviso.com.ar>
wrote:
> Hello all, I post this issue thinking too that could help other people on
an
> asterisk deployment over distributed offices considering both quality,
prices,
> devices and so.
>
> Well, i am working on a deployment of a telephony system based in asterisk.
My
> company have a central office with seven remote offices connected all
through a
> VPN. To reduce and evaluate costs i consider solutions like:
>
> Asterisk servers  on all locations(central and remote offices) or
> Asterisk on Central office plus FXO Gateways on remote offices, all of this
> connected through a central asterisk cluster
>
> With the first option i have TDM cards seller that offer me DIGIUM
(expensive)
> or OPENVOX (less expensive), but because i not have experience with OPENVOX
> telephony hardware I cant consider that. So, if Any can give me some good
> reasons for use OPENVOX against DIGIUM cards i would have solve this
question
> because may build IAX trunks on each office.
>
> With the 2nd option I have sellers that offer me gateways:
> Quintum Tenor AFT400
> Planet VIP-480 FO
>
> But, again, I don't have experience with asterisk and FXO gateways to
think that
> it is the best solution amen that is the less expensive solution.
>
> Another solution that i consider is mount asterisk on central office and IP
PBX
> DIGISTAR preconfigured on remote offices.
>
> On the Users Side I was considering the use of Ata's or FXS Gateways,
with Ata's
> I get offers of Audiocodes MP202, GRANDSTREAM HT 386 or Linksys SPA-2002.
And
> with FXS Gateways sellers offers me Quintum Tenor AXG2400, Quintum Tenor
> AFG800
>
> Thanks for any word that can help me to get this VoIP deployment working
and
> sorry for my english. Cheers
>
> G.
>
>
>
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-- 
Bruce
Nortex Networks