Two lectures at the room 8 of the Department of Electrical and Computer Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, are organised on 24 November 2003. The first one entitled "Air Interfaces/UMTS" will be presented at 09:00, being followed by the "Mobile Devs Protocols Languages", which will be presented at 16:00. The lectures was given by Prof. Andreas Pitsillides, of the University of Cyprus.