8P3 - RESOLUTION RATIFYING SUPPLEMENTAL AGREEMENT NO. 3 TO THE MIAMI-DADE AVIATION DEPARTMENT CONTRACT NO. RFP-MDAD-03-14 FOR TELECOMMUNICATIONS AND NETWORK SERVICES MANAGEMENT AGREEMENT WITH NORSTAN COMMUNICATIONS, INC. IN THE AMOUNT OF $1,133,637.00 PURSUANT TO SECTION 2-285(3) OF THE CODE OF MIAMI-DADE COUNTY, FLORIDA; AND AUTHORIZING THE COUNTY MAYOR OR COUNTY MAYOR'S DESIGNEE TO EXERCISE THE PROVISIONS CONTAINED THEREIN AND ALL PROVISIONS OF THE CONTRACT, INCLUDING ANY CANCELLATION OR EXTENSIONS, PURSUANT TO SECTION 2-8.1 OF THE COUNTY CODE AND IMPLEMENTING ORDER 3-38 [SEE AGENDA ITEM NO. 8P2](Strategic Procurement)