OUT OR AWAY?
Spanish people like to use the phrase: "He is out at the moment" when they are talking about someone who is not in the office. When you use "out" in English this gives an indication that the person is not in the office at the moment but will be returning shortly. If you want to talk about someone who will not be in the office for a few days or weeks it is better to use "away".
So, for example: "He is away at the moment" gives the impression that the person will be back in a few days or potentially weeks. So, in summary: out=short period of time, away=long period of time.
Hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 15 años de experiencia enseñando inglés a españoles.