Possibly stupid question on a (future) PBX Setup...

[Igtenio]

Alright, so I've been researching setting up a personal PBX, and I've got it essentially figured out. But before I dump money and time into it, I want to clear that something will work;

The current layout of my phone system is a POTS analog line to a cordless phone. It also has a filter on it for DSL.

What I'm wanting to do is...well, this;

O <---Telephone line
[] <--- DSL Filter
 |
 |
 |
 |  <--- FXO Port
{} <--- Linksys SPA-3102
 |  <--- FXS Port
 |
 |
<> <--- Existing Cordless phone

My, the formatting will probably butcher that...but you get the drift, I hope.

Anyway, that setup, with the PBX plugged into an ethernet port on the Linksys.

Will this work? I found a tutorial here seemingly suggesting this setup, but I figured I'd double-check first.

My biggest worry is buying everything, and then finding out after I hook everything up and it doesn't work that I made some stupid error on Step X.

[PlugPBX Admin]

Yes that will work.

I had that setup with a SPA-3102 (has both FXO and FXS ports), before we had our analog line ported to VOIP.

It worked slick because i had all incoming PSTN calls via analog routed into Asterisk. Outbound calls first were attempted over voip and would fail over to PSTN FXO analog port.

This way the phones just 'worked' before and after the VOIP porting, the wife never noticed anything changed, and I was able to trial VOIP calling before the port completed. I also didn't tell family or friends we ported to voip, so after the fact of several months when some said VOIP was worse call quality, I was able to trump them nicely

There are plenty of details online how to set this up.... You also can mix and match VOIP and your PSTN circuit for long distancing or other country points of access, or add additional lines / calling capacity by mixing voip and analog PSTN services, or even provide yourself to remote family to call in via VOIP and gain PSTN bridged access for a fee or otherwise etc etc.

Other friends of mine have used the 3102 just to do simple bridging in apartment buildings, where they used analog phone intercom building systems (let in guests) so this way a 'call' from the front door PA system would ring the VOIP connected phones thanks to the FXO/FXS bridging functions of the 3102.