This is a NATO funded project. In order to assure a secure and reliable communication system between the Wing Operation Center, Squadron Operation Center and existing aircraft shelters at Incirlik Airbase, 104 telephone subscribers connected to 2 private automatic exchanges, 57 telebrief subscribers connected to 3 control consoles, and 25 km. of ground distribution system were installed successfully by ERE the system had been delivered to the end user, USAF.