Subscriber - Calendar
The Calendar within the Subscriber Account Page shows events specific to this particular Subscriber. This calendar functions similar to the company wide Calendar.

Click on an event to view more information.
In the upper right you have the ability to:
View/Add Notes View Dynamic Workflow (unavailable if event is already tied to a Workflow) View/Add Attachments View Directions/Drive Time
Below this you'll see the start/end date, title, assignments, Location, Subscriber, and associated Workflow.