...
If you are using the Contact Management feature, which is turned on in the Service Options window, the Contacts button appears at the top of the Location window. The Contacts feature is used to track people in addition to, or instead of, Contact Person 1 and Contact Person 2. For example, a company may need to track the building manager, janitor, office manager, and receptionist for each of its customer locations. Each contact person could have unlimited phone numbers attached to their contact record.
...