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Displays
There is no audible ring tone. Ringer volume is low, or the
Ring Type is set to Silent Ring.
Verify ringer volume and Ring Type:
• To adjust the ringer volume, press
either of the volume keys when the
phone is in the idle state.
• Check that the Ring Type is not set to
Silent Ring. (See Updating the Ring
Tone on page 2-7.)
Outbound or inbound calling is
unsuccessful.
Place a call to the phone under
investigation. Check that the display
indicates incoming call information.
A “hollow” phone icon, ,
displays at the top of the screen.
The phone is not registered to a
server.
Ask your system administrator to register
the phone to a server.
Symptom Problem Corrective Action
There is no display.
The display is incorrect.
The display has bad contrast.
Power is not correctly applied to
the phone.
Verify that power is correctly applied to the
phone:
• Check that the display is illuminated.
• Ensure the network cable is inserted
properly on the underside of the
phone. (Try unplugging and
re-inserting the cable.)
• If your phone uses Power over
Ethernet (PoE), have your system
administrator check that the switch is
supplying power to the phone.
The contrast needs adjustment. Adjust the screen contrast. (See Updating
the Display Contrast on page 2-5.)
The display is flickering. Certain types of older fluorescent
lighting cause the display to
appear to flicker.
Try the following:
• Move the phone away from the lights.
• Replace the lights.
Symptom Problem Corrective Action
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General
Weight and Dimensions
