Would like to know which MCD's and what voip soft client  will be compatible the hyperfast roaming feature of our WLANS?    Customer tested commercial wifi phones using wpa-personal encryption but they have a problem since it waits until the signal is very low befor a handoff occurs. This results in a choppy voice during handoff. Is there also a  way to make MU's to do a more  aggressive pre-emptive handoff on  our wlan?