Troubleshooting
No Dial-Tone
Verify power is correctly applied to the SoundStation® IP 4000 SIP phone:
•Check that the display is illuminated.
•Make sure that the network cable is inserted properly on the bottom of the phone (try unplugging and re- inserting the cable).
No Display, Incorrect Display or Bad Contrast
Verify power is correctly applied to the SoundStation® IP 4000 SIP phone:
• As “No
•Follow the instructions in this User Guide to adjust the contrast to a darker level.
•Reboot the phone to obtain a default level of contrast (follow the instructions in this User Guide).
No Ringing
Verify incoming ring setting and volume level:
•Adjust the ringing level from the front panel using the volume up/ down keys.
•Check that the Ring Type selected in the Settings menu is not the Silent Ring.
Verify successful outbound or inbound calling:
• As “No Display” above.
Verify successful outbound or inbound calling:
•Place a call to the phone under in- vestigation. Check that the display
indicates incoming call informa- tion.
• Press the 
key. Ensure dial tone is present and place a call to another extension or number. Check that the display changes in response.
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