AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 277

Connecting Auxiliary Equipment
For Fax Machines
A maximum of 16 fax machines can use the Fax Message Waiting feature.
Additional fax machines (more than 16) can be installed, but these machines
cannot use this feature.
NOTE:
Fax machines should not be connected to analog multiline telephones with a
General-Purpose Adapter (GPA). In a GPA configuration, features cannot be
assigned to the fax machine independently of the telephone.
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.
Valid Entries
For the number of seconds: 0 to 30 seconds
For Maintenance Alarms
You cannot assign the line/trunk identified for the maintenance alarm to a button
on any telephone or as a Remote Access trunk, and you cannot use its
line/trunk jack to connect a loudspeaker paging system or Music On Hold.
Valid Entries
Line/trunk numbers
For Voice Messaging System and Automated Attendant
The number of rings cannot be programmed for individual voice messaging
systems; the single setting applies for all. Use the Group Type procedure in
"Optional Group Features" to assign VMI ports as either integrated or generic.
Valid Entries
Touch-tone duration: 50 to 200 ms, in increments of 25 ms
Interval between digits: 50 to 200 ms, in increments of 25 ms
Number of rings before transfer: 0 to 9
Task List: Connecting Auxiliary Equipment
Obtain Form 2c, System Numbering: Line/Trunk Jacks, and the
appropriate individual telephone form (4d, 4e, 4f, 5b, or 5c). For a voice
messaging system or auto attendant system, see the forms packaged
with the application.
If necessary, read "Auxiliary Equipment" in System Programming ,
Chapter 4, for additional information.
Plan changes using the planning guidelines above; record the new
values on the form(s).
Open the System Programming menu from the console or a PC with SPM.
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Managing the System