Hamshack Hotline


Check them out!
hamsoverip.com
Free Amateur to Amateur telephone service
(it replaces hamshackhotline.com)

 
SPA525G2 (Bluetooth) and the optional SPA500DS Attendant

Amateur to Amateur calls or bridge to different groups, even
Bluetooth to your cell (with the G2 model) to make and receive calls too.

  (you can import your address book from your cell to your Hamoverip phone)