Five9 Strengthens Open Platform Strategy with Evolution of Five9 Fusion-# Five9 Strengthens Open Platform Strategy with Evolution of Five9 FusionShare---New Five9 Fusion Partner Program brings together a growing ecosystem of product integrations and third-party technologies for the next-generation of connected and intelligent customer experiencesLAS VEGAS--(BUSINESS WIRE)--Enterprise Connect – Five9 (Nasdaq: FIVN), provider of the Intelligent CX Platform, today launched the evolution of Five9 Fusion, with a ...