What's the baud rate of the 5v data? At the switch, convert it to rs232, 
plug it into something like a GridConnect Net232 
http://www.gridconnect.com/net232.html serial to ethernet adapter.

Do the same at the other end, in reverse, plus add power back onto the 
data for the phone. Run a parallel POTS to POTS VOIP link. Not quite 
plug-n-play as the Net232s require setup for the network connections, 
and you'd probably have to port forward through the firewalls.

That would be pretty cool, to have a 7130 from my 123211D home on my 
desk at work...

Digital might be able to be done the same way, minus the POTS/VOIP link. 
Bits are bits...

Hmmm....

Larry wrote:

>would be easy for apits, pair one is a pots loop (put it on voip). pair 
>two has power  (get locally) and a 5v data stream to lite buttons and 
>detect button pushs.
>
>  
>

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