4.1 Troubleshooting
Installation Manual 151
4.1.3 Operation
PROBLEM PROBABLE CAUSE SOLUTION
• When using the
speakerphone on an APT,
nothing is audible.
• The HANDSET/HEADSET
selector is set to the
"HEADSET" position.
• When the headset is not used, set the
HANDSET/HEADSET selector to the
"HANDSET" position.
• When using the
speakerphone/monitor
mode with a DPT, nothing is
audible.
• The "HEADSET" mode is
selected by Personal
Programming, "Handset/
Headset Selection".
• When the headset is not used, select
the "HANDSET" mode by Personal
Programming.
• The PT does not ring. • The ringer volume is off. • Turn on the ringer volume.
• Originating an outside call,
call transfer, or conference
cannot be performed.
• The corresponding CO
button does not exist on the
PT.
• Programme 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.
• Enter the PIN set to the Hybrid IP-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 Using the KX-TCA255/KX-
TD7590").
• 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.
• PS is out of CS coverage
area.
• Locate the CS properly (refer to "2.7.5
Site Survey Using the KX-TCA255/KX-
TD7590").
• 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.
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