Howtoget mumble working?

[La5ade]

Hello

i finally got my microphone working and thought my problems were over....
but this thing with mumble doesn't seem to be as easy as i was told...

when i open mumble, it asks me to conneect to a server, i have not the faintest idea to which one...

then i run mumble-overlay ~/regnum_nt/rolauncher
and as fas as i see exactly nothing changed....

so what do i need to do to get this working?

thanks in advance