AT&T MERLIN LEGEND Release 3.0 System Programming Manual page 359

Basic System Operating Conditions
NOTE:
No more than 50 percent of the trunks in a trunk pool are allowed to be placed
in the maintenance busy state at one time unless; the central office has failed to
disconnect a trunk (which prevents anyone from using that trunk); or an entire
trunk module is manually taken out of use (a maintenance-busy state
deliberately caused by the user).
Summary: Automatic Maintenance Busy
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure
PC Procedure
System manager
All
Not required
Form 1, System Planning
Disabled
Enabled, Disabled
No
No
To disable Automatic Maintenance Busy:
System → MaintenBusy → Disable → Enter → Exit
To enable Automatic Maintenance Busy excluding
tie trunks:
System → MaintenBusy → Enable → Enter → Exit
To enable/disable with tie trunks:
System → MaintenBusy → Enable → Enter →
Enable or Disable → Enter → Exit
To disable Automatic Maintenance Busy:
[ F1 ] → [ F6 ] → [ F2 ] → [ F10 ] → [ F5 ]
To enable Automatic Maintenance Busy excluding
tie trunks:
[ F1 ] → [ F6 ] → [ F1 ] → [ F10 ] → [ F5 ]
To enable/disable with tie trunks:
[ F1 ] → [ F6 ] → [ F1 ] → [ F10 ] → [ F1 ] or [ F2 ] → [ F10 ] → [ F5 ]
Programming Procedures
4-9