Polycom SIP 2.2.0 manual Displays, Phone on page C-9

Troubleshooting Your SoundPoint IP / SoundStation IP Phones

Displays

Symptom	Problem	Corrective Action
There is no display.	Power is not correctly applied to	Do one of the following:
The display is incorrect.	the SoundPoint IP family SIP	• Check that the display is illuminated.
	phone.
The display has bad contrast.		• Make sure the LAN cable is inserted
		properly at the rear of the phone (try
		unplugging and re-inserting the
		cable).
		• If using in-line powering, have your
		system administrator check that the
		switch is supplying power to the
		phone.
	The contrast needs adjustment.	Do one of the following:
		• Refer to the appropriate SoundPoint
		IP / SoundStation IP SIP phone User
		Guide.
		• Reboot the phone to obtain a default
		level of contrast (refer to Rebooting
		the Phone on page C-9).
	Outbound or inbound calling is	Do one of the following:
	unsuccessful.	• Place a call to the phone under
		investigation. Check that the display
		indicates incoming call information.
		• Lift the handset. Ensure dial tone is
		present and place a call to another
		extension or number. Check that the
		display changes in response.
The display is flickering.	Certain type of older fluorescent	Do one of the following:
	lighting causes the display to	• Move the SoundPoint IP /
	appear to flicker.
		SoundStation IP SIP phone away
		from the lights.
		• Replace the lights.

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