Apply preventive, corrective and emergency actions as well as fix technical issues on the mobile phone network 2 and 3G (base station and call controllers, BSC`s, Nokia Equipment), on Core (cellular switches and added value platforms), on the relay system (satellite, microwave, optical fiber, MPLS et IP networks) or on the Generating Set (AC and DC distribution and support system) in accordance with the operating manuals and the maintenance routine checks fixed by the management team in order to sustain and improve the supply and quality standards of the company.