[Asterisk-biz] SIP payphone that works with Asterisk

[Greg Brown]

I am searching for a programmable payphone that uses SIP and can work 
with Asterisk.  Does anyone know of a VoIP/SIP payphone that is 
programmable and built for sale?  Google turns up some near hits - 
mostly Phone/Wi-Fi kiosks and "touch screen" payphones but I'm looking 
for something closer to the "Ma Bell" style payphone.  I'd rather buy 
it then build it, but if it's not out there and for sale I guess I'll 
have to start building.

Greg