Refer to t he exhibit. Packets are being sent and received between an IP phone and Cisco UCM but the phone shows as Unregistered on the Cisco UCM Admin web page Which action must be taken next to resolve the issue?
A.
Check on the phone side because it is using an incorrect source port to connect with Cisco UCM server
B.
Check on Cisco UCM side because the CTL fie was not downloaded successfuly
C.
Check on the network to verify why the connectivity is not happening correctly
D.
Check on the phone side because It is attempting to register to an incorrect Cisco UCM server
Chosen Answer:
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