[sudo-discuss] VoIP phones? SIP configuration?

does anyone know how to set up VOIP phones? I have a bunch of them and i want to set them up to call around. We used to have an asterisk server at sudoroom, but that computer died or something...and i have never been able to figure out how to configure asterisk even though i've tried a couple of times. presently i'm trying to do the most basic vanilla shit with https://onsip.com I've set up a plain old Polycom model 321 phone according to instructions, but it still doesn't do anything, and i can't get it to make or receive calls. Anyone want to help? I have extra phones. -jake