Air-Stream Wireless is operating an Asterisk Server over wireless which is available to all members to use. Asterisk is a complete PBX Open Source software system. It runs on BSD/Linux and provides all of the features you would expect from a PBX and more.
Why not enjoy this IP experience and keep in touch with your fellow members any time. More Information here...
Success
I've just setup two IP phones this weekend and was surprised how simple the whole process was.
Full story here..