I have been using the Pi for awhile on IRLP with great success. It runs without a hitch. I was curious if anyone is using or has explored the use of the Pi with Asterisk on Allstar? It seems like the requirements would be similar. I use a USB sound FOB and the standard IRLP controller board. The Pi GPIO drives the IRLP controller in place of the standard PC parallel port.

I suspect the URI radio adapter or equivalent is all I would need in the way of hardware for Allstar. I have experience with Asterisk as I have been using it in a residential PBX for almost 10 years.

73 Doug
WA3DSP
http://www.crompton.com/hamradio