Polycom 1725-30965-001 用户手册

User Guide for the Polycom

®

 SoundStation

®

 IP 5000 Phone

38

There is no audible ring tone.

Ringer volume is low, or the 
Ring Type is set to Silent Ring.

Verify ringer volume and Ring Type:

To adjust the ringer volume, press 

 when the phone is in 

the idle state.

Check that the Ring Type isn’t set to 
Silent Ring. (See 

 on page 

Outbound or inbound calling is 
unsuccessful.

Place a call to the phone under 
investigation. Check that the display 
indicates incoming call information.

A “hollow” phone icon, 

, 

displays next to the directory 
number.

The phone isn’t registered to a 
server.

Ask your system administrator to register 
the phone to a server.

There is no display.

The display is incorrect.

The display has bad contrast.

Power isn’t correctly applied to 
the phone.

Verify that power is correctly applied to the 
phone:

Check that the display is illuminated.

Ensure the network cable is inserted 
properly on the underside of the 
phone. (Try unplugging and 
re-inserting the cable.)

If your phone uses Power over 
Ethernet (PoE), have your system 
administrator check that the switch is 
supplying power to the phone.

The contrast needs adjustment.

Adjust the screen contrast. (See 

 on page 

The display is flickering.

Certain types of older fluorescent 
lighting cause the display to 
appear to flicker.

Try the following:

Move the phone away from the lights.

Replace the lights.