When planning for voice deployments with the Cisco Unified Wireless IP Phone 7921G handset in amultifloor building with a WLAN that operates at an 11 MB/s data rate, how many decibelsreferenced to 1 milliwatt of same-channel separation are recommended between floors?()
- A13 dBm
- B19 dBm
- C25 dBm
- D31 dBm