User Guide GULFSIP-‐GS24P
88
Troubleshooting
This chapter provides general troubleshooting information to help you solve the problems you might
encounter when using your GULFSIP-‐GS24P.
If you require additional information or assistance with your new phone, contact your system
administrator.
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.
Why does the phone display “Network Unavailable”?
Ensure that the Ethernet cable is plugged into the Internet port o the phone and the Ethernet cable is
not loose.
Ensure that the switch or hub in your network is operational.
Contact your system administrator for more information.
Why does the phone display “No Service”?
The phone LCD screen prompts “No Service” message when the SIP accounts do not register
successfully. Contact your system administrator for more information on account settings.
Why can’t I get a dial tone?
Check for any loose connections and that the phone has been installed properly. For the installation
instructions, refer to
Phone Installation
on page
14
.
Check whether dial tone is present on one of the audio modes.
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.
Why doesn’t the phone ring?
Check the ringer volume on your phone. To adjust the ringer volume setting, press the Volume key
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