SerbiaEngineering design review and supervisionOpen Technical control of design documentation and professional supervision for two years "РАТЕЛ" РЕГУЛАТОРНО ТЕЛО ЗА ЕЛЕКТРОНСКЕ КОМУНИКАЦИЈЕ И ПОШТАНСКЕ УСЛУГЕ, БЕОГРАД, ПИБ: 103986571 Submission deadline November 6, 2026 at 9:00 AM UTC Contract value Not stated in the notice