A web browser is opened to a new Cisco Unified Wireless IP Phone 7921G or 7925G connected to a windows computer via USB. Which statement describes the ability to read and write configuration parameters to prime the phone for its first VoWLAN association and its association to a Cisco Unified Communications Manager?

A.
Phones are always read-only.

B.
Phones are read-only and require user to be authenticated as administrator for write access.

C.
Phone read/write access depends on the firmware version.

D.
Phone depends on Cisco Unified Communications Manager configuration.