A customer has a business-critical voice network and wants to be alerted whenever voice clients move out of a coverage area and experience RSSI below -67 dBm on the 5 GHz band. Which option can be configured on the wireless controller to alert network administrators when this limit is surpassed?
A. EDCA; voice optimized
B. SIP voice sample interval
C. 802.11a voice RSSI coverage threshold
D. traffic stream metrics
