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4.1 Troubleshooting
Installation Manual 115
4.1.3 Operation
PROBLEM PROBABLE CAUSE SOLUTION
• The APT does not ring. • The ringer volume is off. • Turn on the ringer volume.
• During a power failure,
extensions connected to
ports 1 and 2 of Hybrid Ports
do not operate.
• An APT is connected to the
extension port.
• The dialing mode (tone or
pulse) is incorrect.
• Disconnect the APT and connect an
SLT.
• Set the Tone/Pulse switch to the other
position.
• Originating an outside call,
call transfer, or conference
cannot be performed.
• The corresponding CO
button does not exist on the
APT.
• Program the CO button. Refer to
"1.18.2 Flexible Buttons" in the Feature
Guide.
• Cannot register the PS. • Wrong Personal
Identification Number (PIN)
is registered to the PS.
• Register the PIN set to the PBX into the
PS.
• CS is not connected
properly.
• Make sure that the cable is connected
properly with correct pin assignments.
Also, make sure that the cable does not
make short circuits.
• Switch all DIP switches off.
• PS becomes out of range.
• Cannot make calls using the
PS.
• CS is not working. • Make sure that the cable is connected
properly with correct pin assignments.
Also, make sure that the cable does not
make short circuits.
• Switch all DIP switches off.
• Location of CS is not good. • Locate the CS properly (refer to "2.7.5
Site Survey" ).
• Access system of the PS is
not properly set.
• Change the access system setting of
the PS to the appropriate system or
automatic.
• Noise is frequent while using
the PS.
• Conversations disconnect
while using the PS.
• Call handover is not
working while using the PS.
• PS is out of CS coverage
area.
• Locate the CS properly (refer to "2.7.5
Site Survey" ).
• PS stays out of service
when the CS status is
changed from Out of
Service to In Service.
• It may take about 10 s for
CS to start up after the
status has been changed to
In Service.
• Wait until the CS starts up.