Not a very good day for their web site to go down. I can't access it either. Maybe it is just locked while they update it for the quarterly report? My guess is it will be up and running in a few minutes, at least I hope so.
Access to the conference call from the U.S. (800) 289-0573 by 9:50 a.m. EST on February 28. Ask operator for InterDigital Financial Call. From outside the U.S. dial (913) 981-5544.
live access to the call on its web site at: www.interdigital.com. click on link to the Live Web Cast on the homepage.
a replay of the call will be available from 1:00 p.m. EST February 28 for 30 days. dial (888) 203-1112 or (719) 457-0820 and use the replay passcode 6156438.