 RALEIGH-DURHAM, N.C.--BUSINESS WIRE--Avaya NYSE: AVYA, a global leader in solutions to enhance and simplify communications and collaboration, recognized four U.S. partners for their outstanding collaboration, innovation, and commitment to delivering successful business outcomes for customers. Avaya U.S. Partner of the Year Awards celebrate leaders across eight categories, including an award presented for the primary U.S. Partner of the Year. We have a deep commitment to our partner ecosyst 