Hello, I am using R500 unleashed for Voice over WIFI. The problem is that everytime I roam during call and handover to the next AP I always dropped a call. Can you suggests any feature to activate on the unleashed to solved this matter? I've tried to enabled some features I've read like CAC, 802.11k or r but still same issue.. I've also tried to lowering the Tx power to minimum because the AP sometimes overlaps, if I didn't do this the call drop is always occurs even if I moved from the nearest AP just a few meters..