Object: Electronic Auction - Contracting Of Fixed Telephone Services, With Pabx Telephone Exchange, In The Form Of Rental, Including Installation, Provision Of Technical Assistance - Preventive/Corrective Maintenance And Maintenance Of The Internal Network Of Extensions, With Supply Of Telephone Devices, Parts, Cables, Wires, Sockets, Blocks, Connectors Or Any Other Peripherals/Accessories, Essential For The Proper Functioning Of The System, Requirements Described In The Terms Of Reference - Annex I.