asterisk users - Aug 2005 - Multiple Asterisk Installations + SER

I'm trying to implement a shared asterisk server for multiple
(different) companies. Here's what I've done so far:
 
- I've installed multiple asterisk instances on one server (via
vserver). Each * is for one customer, and has it's own extensions (like
100, 101, 102, etc.) Note that the same extension can exist on other *
instances
- The SIP Clients register themselves with *
- As a front-server I've installed a SER server.
- Via our Telco we have a IP Voice Interconnect, which is our gateway to
the PSTN.
 
Can you please advise me what's best to do next:
 
- Let the * servers register themselves to SER
- Make aliases for the (public) phonenumbers to the * 'user'
- If an PSTN phonecall comes in from our gateway, it comes at SER; SER
looks in the aliases to which * it belongs, and forward the call the *
which then forwards it to the SIP client (IP Phone/Application...)
- Calls made by a SIP client are being handled by *, which forwards the
call to SER. SER looks if it's a local call (=> handled by A * server)
or a PSTN call, and based on that forwards the call to a * server, or to
the PSTN gateway.
 
Is this an efficient setup? Our customers our connecting to the * via
WAN. Is it smarter to let the SIP Clients register with SER (can they
still have the same extensions)?
 
If anyone has some ideas about this, or other suggestions: they're more
than welcome!
 
Regards,
 
Ronald Voermans

> - I've installed multiple asterisk instances on one server (via
> vserver). Each * is for one customer, and has it's own extensions (like
> 100, 101, 102, etc.) Note that the same extension can exist on other *
> instances
    This is completely UNNECESSARY if you simply use contexts. We have 1
asterisk server running 6 different companies and a good majority of their
extensions overlap. This is very easy to configure.


-Matthew

Okay,

First of all, thank you for your input. I didn't know that I could use 1
* for multiple companies (wish I knew it earlier, because installing
vserver and installing * on a vserver took me a lot of time :) ).
Nevertheless, I think I still will need the SER. If my 'shared *' server
is getting overloaded, I want to be able to quickly add a new * server.
For the IP Voice Interconnect to work properly, I think I need one
'gateway' on our side, which will be SER. Is this correct? 


Met vriendelijke groet,
---------------------------------------------
R.L.L.M. Voermans
Manager Network Connectivity Intern
Global-e
Raadhuisstraat 32
5126 CJ Gilze (NL)
T: +31-(0)161-888888
F: +31-(0)161-888899
E: r.voermans@global-e.nl
W: http://www.global-e.nl
---------------------------------------------

-----Oorspronkelijk bericht-----
Van: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] Namens Matthew Boehm
Verzonden: zondag 14 augustus 2005 18:41
Aan: Asterisk Users
Onderwerp: Re: [Asterisk-Users] Multiple Asterisk Installations + SER
> - I've installed multiple asterisk instances on one server (via 
> vserver). Each * is for one customer, and has it's own extensions 
> (like 100, 101, 102, etc.) Note that the same extension can exist on 
> other * instances
    This is completely UNNECESSARY if you simply use contexts. We have 1
asterisk server running 6 different companies and a good majority of
their extensions overlap. This is very easy to configure.


-Matthew


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If I install 1 * server, with multiple companies/dialplans, how do I
make 1 company dial the other company with a full telephonenumber (i.e.
10 digits)?




-----Oorspronkelijk bericht-----
Van: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] Namens Tzafrir Cohen
Verzonden: maandag 15 augustus 2005 8:28
Aan: asterisk-users@lists.digium.com
Onderwerp: Re: [Asterisk-Users] Multiple Asterisk Installations + SER

On Mon, Aug 15, 2005 at 07:54:50AM +0200, Ronald Voermans
wrote:
> Okay,
> 
> First of all, thank you for your input. I didn't know that I could use
> 1
> * for multiple companies (wish I knew it earlier, because installing 
> vserver and installing * on a vserver took me a lot of time :) ).
> Nevertheless, I think I still will need the SER. If my 'shared *' 
> server is getting overloaded, I want to be able to quickly add a new *
server.
> For the IP Voice Interconnect to work properly, I think I need one 
> 'gateway' on our side, which will be SER. Is this correct?
Those asterisk instances still share quite a few resources: the network
bandwidth and probably the CPU time. 

With some scriptology, it would probably be rather simple to add another
"company" to your Asterisk configuration.

-- 
Tzafrir Cohen         | tzafrir@jbr.cohens.org.il | VIM is
http://tzafrir.org.il |                           | a Mutt's  
tzafrir@cohens.org.il |                           |  best
ICQ# 16849755         |                           | friend
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I'm not sure I understand what you mean...

I want to have internal extensions (100, 101, 102, etc.) and some full
phone-numbers (10 digits). How do I implement this in *? 

Ronald

-----Oorspronkelijk bericht-----
Van: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] Namens Florian Overkamp
Verzonden: maandag 15 augustus 2005 11:58
Aan: Asterisk Users Mailing List - Non-Commercial Discussion
Onderwerp: Re: [Asterisk-Users] Multiple Asterisk Installations + SER

Hi,

Ronald Voermans wrote:
> If I install 1 * server, with multiple companies/dialplans, how do I 
> make 1 company dial the other company with a full telephonenumber
(i.e.
> 10 digits)?
This is very much dependant on how your dialplan works. We use
normalisation for each account so the system doesn't have to worry about
many different dialling formats (i.e. with or without areacode, and
such). You can use a similar strategy for all your internal numbers as
well.

Florian
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