What should be the minimum RSSI value to meet the system’s requirements?

A customer is acquiring a new VoWLAN system to replace their existing wired phone system. When reading about his system’s requirements, you learned that is requires 25 db of SNR to work as expected. After surveying the environment, you discovered that the noise floor is -88 dBm.

What should be the minimum RSSI value to meet the system’s requirements?
A . -70 dBm
B . -67 dBm
C . -65 dBm
D . -63 dBm

Answer: B