AT&T MERLIN LEGEND Release 2.0 System Programming Manual page 375

Programming Procedures
F a x
Use this procedure to identify the station jacks used to connect fax machines.
In addition, specify the telephones to receive a message-waiting indication
(MWI) when a fax transmission is received, and specify the length of time before
the system registers that a fax has arrived and sends the message-waiting
indication.
NOTE:
Do not use this procedure for fax machines connected to analog multiline
telephones via a General Purpose Adapter (GPA) because features cannot
be assigned to the fax independently of the telephone in a GPA
configuration.
A maximum of 16 fax machines can have the Fax Message Waiting feature.
[Additional fax machines (more than 16) can be installed, but these machines
cannot have this feature.]
You can specify up to four telephones to receive the message-waiting indication
when a fax transmission is received. Note that fax machines can only send and
not receive message-waiting indications.
Entering Programming
Console: Select Menu
PC/SPM: Type SPM
Exiting Without Changes
To exit from any screen without making changes, select Exit on the console or
[F5]
press
3 - 2 8 4 F a x
Sys Program
press any key
on the PC before saving your entry or menu selection, .
Exit
[F1] [F5]