Which configuration action should the administrator take to fix this issue?

Refer to the exhibit.

Mobile and remote access is being added to an existing B2B deployment and is failing. When the administrator looks at the alarms on the Expressway-C, the snippets are shown.

Which configuration action should the administrator take to fix this issue?
A . The listening port on the Expressway-C for SIP TCP must be changed to a value other than 5060
B . The listening port on the Expressway-C for SIP TLS must be changed to a value other than 5061
C . The listening port on the Cisco UCM for the Expressway-C SIP trunk must be changed to something other than 5060 or 5061
D . The listening port on the Cisco UCM for the Expressway-C SIP trunk is set to something other than 5060 or 5061. It must be set to 5060 for insecure and 5061 for secure SIP

View Answer

Answer: A