You want to run decoded VoIP between RJ11 jacks via POTS signaling...makes sense Before you start mucking around with the punchdowns in the MPOE, I'd start toning pairs at all your existing jacks.

The Chat-Chord PSTN Switch isn't anything all that special, when it comes down to it, it's just a couple of RJ11 sockets, some of cables for connecting to your PC's audio card, and some Skype ...

I have tried it all. Skype, Vonage, even VoIP from my ISP. Still, none were as easy as promised. Skype required me to purchase a expensive USB headset, Vonage required their equipment and my ISP ...