Nortel North American DMS-100 Instruction Manual page 303

1-288 Trouble locating and clearing procedures (continued)
Returning a busy PRI trunk to service
ISDN PRI trunk
Summary of Returning a busy PRI trunk to service
Post the INB or
MB PRI trunk
PRI trunk
state MB?
Y
Return the busy
PRI trunk to
service
Passed?
Y
End
297-8021-544 Standard 14.02 May 2001
(continued)
N
Manually busy
the PRI trunk
Y
Passed?
N
Determine the
D-channel state
Return the busy
PRI trunk to
service
Y
Passed?
N
N
Contact next
level of support
This flowchart summarizes the
procedure.
Use the instructions in the
procedure that follows this
flowchart to perform the
procedure.