Thank you very much fro bringing me NEAR the solution :-) I have tried setting up things from within that address book menu but am frustrated by the many pages I am not catching.

The most urgent one is that whenever my best friend writes in the channel I am connected to, if the window is not active in the foreground, I get paged by a sound.

Could you help me understand how to achieve that or point me to some tutorial ?

Thanks a lot