Polycom IP 330 ユーザーズマニュアル

 Troubleshooting Your SoundPoint IP 330/320 Phone

5 - 7

There is no display.

The display is incorrect.

The display has bad contrast.

Power is not correctly applied to 
the SoundPoint IP 330/320 
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 330/320 SIP 
phone away from the lights.

Replace the lights.

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).