A solutions architect is designing a Cisco UCM solution for a large enterprise consisting of hub and spoke clusters as well as global dial plan catalog. Which Cisco UCM service must be activated?

Refer to the exhibit. Given this " debug isdn q921 " output, what is the problem with the PRI?
A collaboration engineer inherits the responsibilities of another engineer. The previous engineer implemented a SIP integration between Cisco Unity Connection and Cisco UCM. Users can leave messages, but the Message Waiting Indicator is unconfigured. Which two actions must the engineer perform to enable MWI? (Choose two.)
Which two steps are required for bulk configuration transactions on the Cisco UCM database utilizing BAT? (Choose two.)
Which endpoint feature is supported using Mobile and Remote Access through Cisco Expressway?
An administrator is configuring Entra ID synchronization with Cisco Webex Control Hub using SCIM Which two actions must be taken to enable user synchronization and attribute mapping? (Choose two.)

Refer to the exhibit. Unanswered calls do not reach the voicemail associated with the phones Instead, callers receive the default greeting Which action fixes the configuration?