Troubleshooting; Why Is The Phone Lcd Screen Blank; Why Does The Phone Display "Network Unavailable; Why Can't I Get A Dial Tone - Htek U Series User Manual

Troubleshooting

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 if the power LED is on to ensure that the phone is powered on.


Why does the phone display "Network Unavailable"?

To resolve:
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 functioning well.

If the problem still persists, Contact your system administrator for more information.


Why can't I get a dial tone?

To resolve:
Check for any loose connections and that the phone has been installed properly. For

the Installation instructions, refer to the
Check whether dial tone is present on one of the audio modes.

Switch between the Handset, Headset (if you have) 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.

Where to set the tone?

You can set the tone on web interface:
Click Setting→ Tones

Define the Dial Tone, Ringback Tone, Busy Tone...

For the tones, you can check with your system administrator.

For More Click Configure Ring

Phone Installation
Tones.
Troubleshooting
section.
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