To make it more comfortable for the passengers while they are in the departure area, departure will not be announced over the loud speaker system. The gate number from which your aircraft will leave is printed on your boarding card, and is displayed on the the electronic board in the departure hall and on monitors next to the entrance to the departue lounges.
It is important, that the passengeres keep themselves informed of when to "Go to gate" and the time of "Boarding". These information will be given on the board and on the monitors mentioned above.