An engineer builds the configuration on a Cisco IOS gateway for the dial-peers:

Which command is required to complete the configuration?
After an administrator installs the Cisco jabber Client, it fails to register with the cisco UCM server. Which two actions should be taken to troubleshoot this problem? (Choose two.)
Refer to the exhibit.
Endpoint A calls endpoint B. What is the only audio codec that can be used for the call?
An administrator configures the voicemail feature in a Cisco collaboration deployment. The user mailboxes must be configured when the Cisco Unity Connection server is configured. Which action accomplishes this task?