In this context, it is necessary to interpret our maintenance services as complement to the guarantee: Regulating the time of performance and resolution of their failure, Management of backup etc, In LANKING we are absolutely flexible in the reception of the restlessness of our clients. Each one of them presents and displays different problem but wants a quick and certain answer. Our commitment with them takes us to adapt to their necessities. We make contracts of maintenance to gather all its restlessness In our contracts of maintenance we include in addition the concept to preventive maintenance. The objective is to supervise our systems to obtain the security of its good continued operation.