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Chapter 5: Troubleshooting Your Phone
Calling
Table
There is no dial tone
If there is no dial tone, power may not be correctly supplied to the phone, try one of the following:
•Check that the display is illuminated.
•Make sure the LAN cable is inserted properly at the rear of the phone (try unplugging and
•If using
The dial tone is not present on one of the audio paths
If dial tone is not present on one of the audio paths, do one of the following:
•Switch between Handset, Headset (if present) or
•If dial tone exists on another path, connect a different handset or headset to isolate the problem.
The line icon shows an unregistered line icon
If you see the following icon , your phone is unregistered. If your phone is not registered, contact your system administrator.
The phone does not ring
If there is a no ring tone, but the phone displays a visual indication when it receives an incoming call, do the following:
•Adjust the ring level from the front panel using the volume up/down keys.
•Check the status of handset, headset (if connected) and through the
•Place a call to the phone under investigation. Check that the display indicates incoming call information.
•Lift the handset. Ensure the dial tone is present and place a call to another extension or number. Check that the display changes in response.
If the ringer is turned off:
•During an incoming call, lift the handset, press the Speakerphone key or press the Headset key to obtain a dial tone.
•Press the ringing Line Key or the Answer soft key to answer the call.
•If the handset is
•If the handset is
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