Polycom Cisco In-Line Power Cable 2200-11014-002 User Manual

20

No Dial-Tone
Verify power is correctly applied to the 
SoundPoint

®

 IP 300/301 SIP phone:

•  Check that the display is illuminated.
•  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, check that 

the switch is supplying power to the 
phone (contact your system adminis-
trator).

Verify if dial tone is present on any other 
audio paths:

•  Switch between handset, headset 

(if present) or hands-free to see if 
dial tone is present on these other 
paths.

•  If dial tone exists on one of these, 

connect a different handset or 
headset to isolate the problem.

No Display, Incorrect Display or Bad Contrast

Verify power is correctly applied to the 
SoundPoint

®

 IP 300/301 SIP phone:

•  As “No Dial-Tone” above.

Verify contrast adjustment:

•  Follow the instructions in this User 

Guide to adjust the contrast to a 
darker level.

•  Reboot the phone to obtain a default 

level of contrast (follow the instruc-
tions in this User Guide).

Verify successful outbound or inbound 
calling:

•  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.

No Ringing

Verify incoming ring setting and volume 
level:

•  Adjust the ringing level from the 

front panel using the volume up/
down keys.

•  Check that the Ring Type selected in 

the Settings menu is not the Silent 
Ring.

Verify successful outbound or inbound 
calling:

•  As “No Display” above.