AT&T Merlin Legend 7102 System Manager's Manual page 8

Feature and Planning Review
Types of Fax Subscribers
Generally, there are three FAX Attendant subscriber classes:
1. Personal Fax Number Subscribers without Fax Machines (Class 1)
2. Subscribers with Fax Mailboxes but without Personal Fax Numbers
(Class 2)
3. Fax Machine Call Coverage Subscribers (Class 3)
Personal Fax Number Subscribers without Fax Machines (Class-1)
Each class 1 subscriber will have a personal fax number. This may be a
Direct Inward Dial (DID) number from the Central Office telephone switch or a
private line administered on the subscribers personal fax extension. A
personal fax number will:
2-9