In which location does an administrator look to determine which subscriber the phone registers to if loses registration with the current Cisco UCM subscriber?

Users dial a 9 before a 10-digit phone number to make an off-net call All 11 digits are sent to the Cisco Unified Border Element before going out to the PSTN The PSTN provider accepts only 10 digits. Which configuration is needed on the Cisco Unified Border Element for calls to be successful?

Refer to the exhibit.

What is a possible cause of the PRI issue?

An engineer must configure a route pattern that can route all +E.164 globalized international numbers for the plans of all countries. Which Cisco UCM configuration accomplish this task?
A)

B)

C)

D)

An engineer must configure switch port 5/1 to send CDP packets to configure an attached Cisco IP phone to trust tagged traffic on it's access port.
Which command is required to complete the configuration?