Nortel North American DMS-100 Instruction Manual page 285

1-270 Trouble locating and clearing procedures (continued)
Restoring far-end service for a D-channel
ISDN PRI primary and backup D-channels
Summary of Restoring far-end service for a D-channel
Post the
D-channels
Are the
D-channel states
INS and STB?
N
Choose and
RNR D-channel
to restore
Ask far-end
personnel to clear
the trouble at their
end
Is trouble
cleared and
D-channel INS?
N
Manually busy
the D-channel
297-8021-544 Standard 14.02 May 2001
1
End
Y
Y
1
Passed?
Y
Return the busy
D-channel to
service
Y
Passed?
1
(continued)
This flowchart summarizes the
procedure.
Use the instructions that follow
this flowchart to perform the
procedure.
N
N
Contact next
level of support