Cisco Unity is integrated with Cisco Unified Communications Manager at a company. The customer reports that Message Waiting Indicators are intermittent on some extensions. You have opened up Integration Monitor to help resolve the issue but do not see any call information. Which statement is true?

A.
You must use Call Viewer for IP integrations.

B.
You must initialize the IP integration feature through the Cisco Unity Telephone Integration Manager.

C.
Transaction data logging needs to be activated.

D.
You will not see any call information unless Extension Specific Processing Utility is also opened.