I reported the above issue on gnome bugzilla. After Guillaume Desmottes' suggestion I added the telepathy ppa and upgraded all the packages, I think farsight being the important one. After that I was able to make Audio call between my 32 bit Netbook Remix and my Nokia N900. I also tried 64 bit Ubuntu and that worked fine too. I added the telepathy ppa found here
https://edge.launchpad.net/~telepathy/+archive/ppa -- empathy hangs when calling a gtalk(windows) user https://bugs.launchpad.net/bugs/585036 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to empathy in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs