Object: Electronic Auction - Hiring A Specialized Company To Supply, On Demand, A Virtual Cloud Pbx Solution With Voip Telephony (Sip), Including Various Technical Requirements And All Necessary Actions For The Full Operation Of The Contracted Solution, For A Period Of 60 Months, Extendable Up To A Limit Of 120 Months, To Serve The Various Dpu Units. In Accordance With The Conditions And Requirements Of The Notice And Its Annexes.