Polycom IP 550 manual Displays, Audio

User Guide SoundPoint IP 550

Displays

Symptom	Problem	Corrective Action
There is no display.	Power is not correctly applied to	Do one of the following steps:
The display is incorrect.	the SoundPoint IP 550 phone.	• Check that the display is illuminated.
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 steps:
		• Refer to Display Contrast on page 2-3.
		• Reboot the phone to obtain a default
		level of contrast (refer to Restarting
		Your Phone on page 4-8).
	Outbound or inbound calling is	Do one of the following steps:
	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 steps:
	lighting causes the display to	• Move the SoundPoint IP 550 SIP
	appear to flicker.
		phone away from the lights.
		• Replace the lights.

Audio

Symptom	Problem	Corrective Action
There is no audio on the	The connections are not correct.	Do one of the following steps:
headset.		• Ensure the headset is plugged into the
		jack marked Headset at the rear of the
		phone.
		• Ensure the headset amplifier (if
		present) is turned on and/or the
		volume is correctly adjusted).

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