»www.freeworlddialup.com/ converts to »www.siptosip.net/ which says Free World Dialup closed open enrollment for SIP registration and membership in order to focus on High Definition (HD) VoIP content and services. People interested in obtaining SIP credentials for participatition in FWD's HD End User Trial should send an email to fwd@pulver.com.
Is this a case of "We got the cash, so now let's dash?"
I created a free account back in December (no longer accessible). From the FWD forums (also no longer accessible) in the following months, there was no evidence that paid accounts had better service. People with paid accounts were unable to access them when I could. IMO there was never any intention of continuing service to anyone.