A colleague of mine has got a very strange problem for which I couldn't find a solution when looking online...
For a few days now when she tries to call someone on Jabber and the call gets answered - both sides cannot hear each other, they just hear the "tut tut" sound.
It is strange, because everything else works properly - when she gets called it works without problems as well.
I've looked up the problem online, but couldn't find a solution. Could you help me out with this one?