Hey Juha,

Thanks for your promt answer! All clear now.
I just wanted to make sure I optimize my config to maximum (sparing characters inthere ;)). Maybe someone can update the documentation since using/not using the params can influence the behaviour.

Cheers,
DanB

if you want to be sure that contact alias is added even if it would not 
add any value, you need to use it with parameters. 

-- juha