What are two benefits of the Cisco Unified IP Phones 9900 Series? (Choose two.) Select exactly 2 answer(s) from the following:
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A.
All phones support up to three expansion modules.
B.
They deliver high-definition voice.
C.
The phones reduce communications delays with rich presence and contact information.
D.
There is an option for an integrated video camera.
E.
The Cisco Unified IP Phone 9900 is a softphone.