You have installed a Cisco Unified IP 8831 Conference phone that is failing to register. Which two actions must you take to troubleshoot the problem?

A.	Verify that RJ-11 cable is plugged into the PC port.
B.	Verify that the Phones network can access the option 150 server.
C.	Disable HSRP on the access layer switch.
D.	Verify that the correct drivers are installed on the switch port of the phone.
E.	Verify that the switch port of the phone is enabled.
F.	Check the RJ-65 cable.