TELETEL is a private Greek SW & HW design and development company actively working in the areas of space, defence and aeronautics. It has a long history of providing development services and products in the avionics, defence, and telecommunications sector. TELETEL works very closely with the European industry having provided SW & HW solutions to several reference companies. Its SW & Systems Engineering Departments are “Approved Development Houses” for THALES AIR DEFENCE, AIRBUS DEFENCE & SPACE, ESA, SPACEBEL, and HULD for SW & microelectronic subsystems, integrated solutions and end products. TELETEL is also involved in various R&D programs funded by the EU, ESA, EDA, NATO and industrial consortia.