Object: Electronic Auction - Contracting Of Ip Telephony Services (Voice Over Ip - Voip) With Loan Supply Of Telephone Exchange And Sip-Trunk Link With Trunk Of 30 (Thirty) Simultaneous Voice Channels, 200 Ip Poe Devices With Two Gigabit Ports And Support For 5 Registration Accounts, 500 Ip Extension Licenses (For Future Expansion), With 200 (Two Hundred) Ddr Numbers Sequentially, With Portability Of Numbers Currently Used, Additional Specifications In The Terms Of Reference.