You are near the corridor support, beside a pillar. Turn around and keep moving forward. After few steps, turn towards your right and move forward. Walk beside the staircase, which are on your right. In front, you find a big brown door, go near that door and turn towards your right again. Keep move forward and climb up a small stair in front of you and stand near the pillar. On your left, you can find a small table, which has a telephone on it. Stand beside that and you reached your destination.