Wanted to inform everyone that we finally got the issue resolved.  The issue was because both mab devices, one being the phone, and the other being a pc, were both utilizing the same network access policy on the NPS server.  The network policy was passing the AV-Pair attribute for voice to both devices, causing a conflict.  Once I create a separate network policy for each device, the pc and phone both are authenticating like they should. ... View more