Object: Electronic Auction - Modernization, Updating And Virtualization In High Availability (Ha) Of An Ip Telephony Solution, With The Supply Of Equipment, Extension Licenses And The Provision Of Telecommunications Services, Including Installation, Configuration, Migration, Technical Support, Preventive And Corrective Maintenance, Software/Firmware Updating And Knowledge Transfer, In Order To Ensure The Proper Functioning Of The Pgj-To Fixed Telephony Communication System (Sctf)