An administrator installed a Cisco Unified IP 8831 Conference Phone that is failing to register. Which two actions are taken to troubleshoot the problem? (Choose two.)

An administrator installed a Cisco Unified IP 8831 Conference Phone that is failing to register. Which two actions are taken to troubleshoot the problem? (Choose two.)
A . Disable HSRP on the access layer switch.
B . Check the RJ-65 cable.
C . Verify that the phone’s network can access the option 150 server.
D . Verify that the switch port of the phone is enabled.
E . Verify that the RJ-11 cable is plugged into the PC port.

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Answer: CD