4.1.3 Operation
PROBLEM PROBABLE CAUSE SOLUTION
• 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.
• During a power failure,
extensions connected
to ports 1 to 2 of
MCSLC16/MCSLC24
do not operate.
• A DPT is connected to
the extension port.
• Disconnect
the DPT and connect an SLT.
• The
dialling mode (tone
or pulse) is incorrect.
• 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 PT.
• Programme the CO button. Refer to
"1.20.2 Flexible Buttons" in the Feature
Guide.
Installation Manual 147
4.1.3 Operation
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