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INSTRUCTION MANUAL VPS-802P
9. Troubleshooting
9.1. Why is the phone LCD screen blank?
Ensure your phone is properly plugged into a functional AC outlet.
Ensure that the phone isn’t plugged into a plug controlled by a switch that is off.
If the phone is plugged into a power strip, try plugging it directly into a wall outlet
instead. If your phone is powered from PoE, ensure you use a PoE compliant switch
or hub, or contact your system administrator for more information. Check that the
power LED is on to ensure the phone is powered on.
Otherwise, contact your system administrator.
9.2. Why does the phone display "Network Unavailable"?
Ensure that the Ethernet cable is plugged into the Internet port on the phone and the
Ethernet cable is not loose. Ensure that the switch or hub in your network is
operational.
Otherwise, contact your system administrator.
9.3.
Why can’t I get a dial tone?
Check for any loose connections and that the phone has been installed properly.
Check whether dial tone is present on one of the audio modes(handset/headset).
Switch between the Handset, Headset (if present) or Hands-Free Speakerphone to
check whether dial tone is present for one of the audio modes. If the dial tone exists
on another audio mode, connect a different handset or headset to isolate the
problem.
Otherwise, contact your system administrator.