Polycom IP 501 SIP ユーザーズマニュアル

20

Display shows “Network Link is Down”

Verify LAN cable is properly connected:

•  Check termination at the switch or 

hub (furthest end of the cable from 
the phone).

•  Check that the switch or hub is 

operational (flashing link/status 
lights) or contact your System 
Administrator.

•  Press 

 followed by System 

 and Network Status.  Scroll 

down to verify LAN port is Active.

•  Reboot the phone to attempt re-

registration with the server.

No Response from Feature Key Presses

Verify phone is in active state:

•  Make a call to the phone to check 

for inbound call display and ring-
ing as normal.  If successful, try to 
press feature keys within the call to 
access Directory or Buddy Status 
for example.

•  Press 

 followed by System 

 and Server Status to confirm 

line is actively registered to the 
server.

•  Reboot the phone to attempt re-

registration to the server.

Part 15 Rules

This device is compliant with Part 15 of 
the FCC Rules.  Operation is subject to the 
following two conditions:

1.  This device may not cause harmful 

interference, and

2.  This device must accept any inter-

ferences received, including inter-
ference that may cause undesired 
operation.

Class B Digital Device or Peripheral

Note:  This equipment is tested and com-
plies with the limits for a Class B digital 
device, pursuant to Part 15 of the FCC 
Rules.  These limits are designed to pro-
vide reasonable protection against harmful 
interference in a residential installation.  
This equipment generates, uses, and can 
radiate radio frequency energy and, if not 
installed and used in accordance with the 
instructions, may cause harmful interfer-
ence to radio communications.  However, 
there is no guarantee that interference will 
not occur in a particular installation.  If 
this equipment does cause harmful inter-

ference to radio or television reception, 
which can be determined by turning the 
equipment off and on, the user is encour-
aged to try to correct the interference by 
one or more of the following measures:

1.  Reorient or relocate the receiving 

antenna.

2.  Increase the separation between the 

equipment and receiver.

3.  Connect the equipment into an out-

let on a circuit different from that 
to which the receiver is connected.

4.  Consult the dealer or an experience 

radio/TV technician for help.