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