It's PalTalk Ed, it seems to work well and the sound quality is vastly superiour to Hearme's. Hearme end the service we were using on 11 December 2000 anyway. As for alteratives to PalTalk,let us know if you come up with anything - it would be nice to find the ellusive software that supports PCs and Macs... The only alternative I looked at this time round was FireTalk which required a higher spec (P233) PC and I know a number of us are using older equipment.Jon