4.1.3
Operation
PROBLEM
•
When using the
speakerphone on an
APT, nothing is audible.
•
When using the
speakerphone/monitor
mode with a DPT,
nothing is audible.
•
The PT does not ring.
•
During a power failure,
extensions connected to
ports 1 and 2 of hybrid
extension ports do not
operate.
•
Originating an outside
call, call transfer, or
conference cannot be
performed.
PROBABLE CAUSE
•
The HANDSET/
HEADSET selector is
set to the "HEADSET"
position.
•
The "HEADSET" mode
is selected by Personal
Programming,
"Handset/Headset
Selection".
•
The ringer volume is off. •
•
A DPT or APT is
connected to the
extension port.
•
The dialling mode (tone
or pulse) is incorrect.
•
The corresponding CO
button does not exist on
the PT.
SOLUTION
•
When the headset is not used, set the
HANDSET/HEADSET selector to the
"HANDSET" position.
•
When the headset is not used, select
the "HANDSET" mode by Personal
Programming.
Turn on the ringer volume.
•
Disconnect the DPT or APT and
connect an SLT.
•
Set the Tone/Pulse switch to the other
position.
•
Programme the CO button. Refer to
"1.18.2 Flexible Buttons" in the Feature
Guide.
4.1 Troubleshooting
Installation Manual
159