Technical information

Troubleshooting and Repair
53
Flowchart 4: Correcting Set / Dataset Problems
Swap the set/dataset with a known working
set/dataset (note the revision & model).
Return faulty set / dataset for
repair.
To clear all dynamic user features for a
set use
DIAGNOSTIC-CLR-FEATURE
Is the fault
corrected?
Yes
No
Ensure that valid features, such as Do
Not Disturb, are not causing the set
to appear faulty.
Verify the firmware revision.
Try swapping the specific line card.
Hint: Remember to advise the users of the temporary
loss of service.
Is the problem
related to feature
functions or is the
problem hardware
based ?
=> Try swapping COS, COR, Tenant
with a known working set to isolate
programming area.
=> Determine what has recently been
changed to cause this type of failure.
=> Determine COS, COR, Tenant
commonality with other sets to rule out
specific set hardware problems.
=>Verify set errors.
D
Flowchart 4:
Correcting set / dataset problems
Features
Hardware