The four activity categories are:

Category

Description

Synchronization with Microsoft Outlook

Indicates that the meeting or presentation has a start date, end date, and time.

Yes

Indicates an activity without time limits, such as answering a telephone or sending a fax.

Yes

Indicates that the meeting or presentation has a start date, end date, and time.

No

Indicates an activity without time limits. Similar to the activity category, but without Microsoft Outlook integration.

No