I noticed this last night. I can imagine that there might have been a license issue or something but I can't seem to find any mention of why this was removed.
** Changed in: ekiga (Ubuntu) Status: Unconfirmed => Confirmed -- iLBC audio codec is not available in Ekiga https://launchpad.net/bugs/64799 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs