You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?
A . Performing protocol analysis with a single wireless adapter that is scanning all channels in use
B . Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey
C . Configuring DSCP-to-802.11e QoS maps on the handset for each access category.
D . Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.

Answer: B