Refer to the exhibit.
A Cisco Wireless IP Phone is unable to seamlessly roam on 2.4 GHz. There are interruptions of several seconds on each roaming. No problems are reported on 5 GHz. A full site survey for voice has been completed on both bands.
Which Cisco WLC feature does this issue involve?
A. client load balancing
B. Aironet information element
C. coverage-hole detection
D. client band select
