[asterisk-users] small homebrew pbx

[Tzafrir Cohen]

On Mon, Jun 15, 2015 at 04:56:31PM +1000, Tim Groeneveld wrote:
> 
> ---- On Mon, 15 Jun 2015 16:46:13 +1000 [Lucio] wrote ---- 
> >Hello all, 
> > 
> >I'm new here and I'm interested in building a small PBX with asterisk at 
> >home. I have one single PSTN line and ethernet cabling in place. I 
> >already have fairly decent PC that I can use (AMD FX 8350 16GB of RAM 
> >and RAID 10 SATA disks). I make and receive 10 calls a day on average. 

You could have used a system that is a bit less powerful. But anyway, I
guess that those are not that expensive nowadays. For that kind of load,
even a much smaller server would do.

> >                                                I 
> >want 4 IP phones connected to the ethernet network. When there is a 
> >incoming call, all phones must ring and the first that takes the call 
> >makes the others stop ringing, but lets them available for internal 
> >calls. 
> > 
> >Given the requirements above, what's a cheap but working PCIe card / USB 
> >adapter I could buy for this kind of PBX? Do I need things like echo 
> >cancellation? Do I need FXS ports? 
>
> You will need a FXS port. I would recommend setting up something like
> Cisco SPA3102.

This is a slight confusion. The SPA3102 has both an FXS and an FXO port. 
What you need is an FXO port - a port to connect to the PSTN as a phone.

An FXS port allows you to connect an analog phone. It is something you
could have used for local extensions. But you already have IP pohnes.

> 
> The SPA3102 can be found cheap on Ebay, and will be easy to setup in Asterisk.
> http://www.infoworld.com/article/2633694/data-modeling/your-pstn-and-you--linksys-spa-3102-and-asterisk.html
> 
> Once the FXS is set up, it's just a matter of adding a ring group/pickup group:
> http://edoceo.com/exemplar/asterisk-call-groups

Again, I guess you meant the FXO port of the device.

-- 
               Tzafrir Cohen
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