Which keypad sequence will reset the Cisco Unified Wireless IP Phone 7921 to factory default?()
A、***
B、**#
C、**1
D、**2
A、***
B、**#
C、**1
D、**2
A、Check that the sensor is not misaligned. B、Clean the space between the sensor and the plate. C、Toggle the tamper switch to reset the sensor. D、Bypass the zone.
A、multi-room audio, telephone, intercom and temperature control. B、thermostat, CCTV, smoke detectors and keypads. C、home theater, lighting control and multi-room audio. D、video, digital cable, and satellite applications.