Object: Electronic Auction - Contracting Of Implementation Service, Maintenance (Preventive And Corrective) And Rental Of Private Telephone Switching Centers (Cpct) For A Period Of 24 (Twenty -Four) Months, Extendable For Up To 3 (Three) Additional Periods Of 12 (Twelve) Months Each. The Services Must Be Provided At The Inb Units In Resende/Rj, Rio De Janeiro/Rj, Caldas/Mg And Caetité/Ba, Replacing The Current Cpct That Make Up The Internal Telephone System In Operation.