Refer to Exhibit. What two items need to be supported on the VoWLAN phones in order to take full advantage of this WLAN configuration? (Choose two.)
A. APSD
B. 802.11a
C. 802.11e
D. WMM
E. 802.11r
F. SIFS
What two items need to be supported on the VoWLAN phones in order to take full advantage of this WLAN configuration?
C & D
And what about requirement to support 802.11a? If it doesnt support it then it won’t even connect to 5 GHz radio.