By default，on the wlan controller for a voice application using cisco 7921 wireless ip phones. what is the percentage of rf bandwidth that can be dedicated to the phones？（）A、75 percentB、85 percentC、56 percentD、55 percent
By default，on the wlan controller for a voice application using cisco 7921 wireless ip phones. what is the percentage of rf bandwidth that can be dedicated to the phones？（）
- A、75 percent
- B、85 percent
- C、56 percent
- D、55 percent
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