Polycom IP 650 User Manual download pdf (Page 85)

Troubleshooting Your SoundPoint IP 650 SIP Phone

6 - 7

Displays

Audio

Symptom Problem Corrective Action

There is no display.

The display is incorrect.

The display has bad contrast.

Power is not correctly applied to

the SoundPoint IP 650 phone.

Do one of the following steps:

• Check that the display is illuminated.

• Make sure the LAN cable is inserted

properly at the side 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

unsuccessful.

Do one of the following steps:

• 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

lighting causes the display to

appear to flicker.

Do one of the following steps:

• Move the SoundPoint IP 650 SIP

phone away from the lights.

• Replace the lights.

Symptom Problem Corrective Action

There is no audio on the

headset.

The connections are not correct. Do one of the following steps:

• 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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Polycom IP 650 User Manual Page 85

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