Do not diagnose all of the analog-line interface cards or channels
at once. This kind of diagnosis can leave no channels available on
the system to accept incoming calls.
Click Diagnose.
Depending on the equipment selected, diagnosis can take
several minutes.
The System displays the Voice Board Diagnostics results page as
the system performs the diagnosis.
If the system displays either of the following messages,
the system did not detect a working telephone line connected to the
voice port.
If you see either of the following messages complete Step a through
Step c.
No loop current on channel number
Channel number changed to state FOOS
Verify that the telephone line is properly connected
to both the interface card and the switch.
Verify that the analog line is set up properly on the
switch.
Verify that the switch port has a dial tone by removing
the analog line, plug in an analog telephone, and listen with the
handset for dial tone.
If there is a dial tone, the analog-line interface card is
defective.
If there is no dial tone, the problem is with the switch. Verify
the wiring and administration of the switch.
If the system displays the following message, the system did
not detect a dial tone. However, it did detect loop current, which
could be a result of excessive load on the analog-line interface card.
If you see the following message, complete Steps d and e.
Diag TRnumber: No dial tone frequencies set
Verify that the analog lines are distributed over several
analog-line interface cards.
Verify that the switch administration for the ports
is valid.
If the system displays either of the following messages,
the channel or card is not working and you must replace the analog-line
interface card:
Channel number changed to state BROKEN
Card number changed to state BROKEN
If the card is NONEX (nonexistent), verify that the card
is properly seated in the slot.
If the card is not properly seated, correct the seating of the
card and then follow the procedures to return power.
