The Object Of The Contract Is The Provision Of Different Surveillance And Security Services For All Atl Facilities. First, It Corresponds To The Surveillance And Security Services Of 24H/365 Days A Year. Secondly, This Is The Discontinuous Surveillance Service. Third, The Alarm Receiving Central Service, The Virtual Concierge And The Face -To -Face Verification Of Alarms Are Included. Finally, The Preventive And Corrective Maintenance Service Of The Security Systems Of The Atl Facilities.