To complete the thread.
The phone onterview went good. After 1 month i was in their place (they payed out the flight and the hotel). This time was an informal thing just to meet by person and have a tour in the office. Later they asked me, when i was back to home, to do a test job. I did it amd sent the results. 2 days ago i recieved an offer :-) now i am thinking about it but i feel like i am going to accept.

Bye!

Thank you Tom :-)