Troubleshooting guide

Hardware
75
Phone Connection
Tip: On display IP phones use the Configuration (Debug) Menu to view Version, Network,
Telephony/DSP, Connection Browser Config, memory Stats details (see page 187).
Table 19: Troubleshooting Phone Connection Problems
Symptom Possible Cause Corrective Action
Cannot make outgoing calls
(except for emergency and
attendant calls). “License
Violation” displays on idle DNI
and IP sets.
The controller is in
System Lock license
violation mode.
Correct the license violation event by reducing the
number of over-allocated licenses.
Cannot make calls externally
(display phone may show call
barred).
COR restricted. 1. Identify the numbers dialed by the user, then
check the route used in ARS.
2. Remove the COR number from COR group
table in COR assignment used in the route, OR
Change the COR group number in the ARS
Routes form.
COS restricted for PRI
or QSIG trunk.
Enable Public network access via DPNSS in the
set's COS.
Cannot make call over analog
loop trunk (intermittent problem).
PBX is sending the
dialing digits too fast for
Telco's receiver on the
LOOP trunk.
Insert a tone plan in the ARS Digit Modification
Plans for the route used by analog loop trunk (tone
plan is used to insert one or two seconds delay
without any tone detection).
NONE of the sets are
responding.
Problem with controller. Perform a system check on the controller.
Sets cannot receive DID calls. Non-DID is enabled in
Station Attributes form.
Disable non-DID in the set's COS.
No dial tone on set. Set is not programmed. In System Administration Tool, program the
extension accordingly.
Wrong wiring. Check the wiring between the phone jack and the
ASU, peripheral cabinet, MDF, etc.
Faulty handset wire. 1. Replace the handset cord.
2. Replace the handset.
3. Replace the set.
Circuit is busy. 1. Enter the Maintenance command STATE <plid
of the circuit>.
2. Enter the Maintenance command RTS <plid>.
Circuit is locked out. Verify the wiring between the phone and the patch
panel.
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