During your TTA assessment of a potential Cisco TelePresence System 1300 room you notice:
– The HVAC diffuser has noticeable noise (mesured at 48 dB) which sounds like rushing air
What three recommendations should be made to the customer? (Choose three)
A.
The customer shoud turn the fan level down on the HVAC system to insure the fan noise is minimized in the Cisco Telepresence room
B.
The customer should contact an HVAC specialist to review and recommend an appropriate solution
C.
The customer should not worry about the HVAC fan noise because the Cisco TelePresence System uses a noise suppression algorithm designed to identify HVAC fan noise and minimize those frequencies
D.
The customer shoud replace the diffusers with a diffuser that is rated with a noice criterion of 10 or greater
E.
The customer should replace the ducting directly above the room with acoustically treated ducting to remove the sound of rushing airflow