Refer to the exhibit.
A technician is reviewing the search history details on a Cisco TelePresence VCS for a recent call that failed. What was the cause for the call setup failure?
| A. |
A local call policy rule denied the call. | |
| B. |
The source alias matched an entry in the registration deny list. | |
| C. |
The originating caller was not authenticated. | |
| D. |
The source alias origin is unknown. |