Prior to the phone interview, I had to do two tests ( Personality test of approximately 160 questions from which several implied mathematical/logical reasoning and a mechanical/physics test - not extremely difficult). Upon successfully passing the tests, a phone interview followed and a skype interview after. Should I have been successful, I would have had to do an interview in Belgium, as last part of the selection procedure, if I recall well. What I found odd is that although I have clearly indicated that I do not posses an engineering degree and nor extensive cold sales experience, the HR staff encouraged me to proceed with my application instead of withdrawing it as I was intending to. Next phase of the interview ( skype) I had to do two simulation cases on cold sales and direct sales and I haven`t passed on to the final stage. All in all, it was an experience and I`m glad I went through it because I have learned something.