Polycom VSX Series Manual De Usuario

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 Diagnostics and General Troubleshooting
7 - 13
Calling
 
Symptom
Problem
Corrective action
Error message occurs 
when placing an IP (H.323) 
call.
The system is not 
connected to the LAN.
Verify that the LAN cable is connected properly.
The system’s LAN cable is 
bad.
Replace the system’s LAN cable.
The far site is not 
connected.
Use the PING test (System > Diagnostics > 
Network > PING
) to determine whether the far site is 
accessible to your system. If the test fails, the far site 
system is unavailable.
The system is not 
configured correctly for the 
network.
Check your IP configuration.
The IP 
Gateway/Gatekeeper is not 
operating or is not 
configured correctly.
Contact the gatekeeper/gateway administrator.
Calls do not connect.
Use the PING test (System > Diagnostics > 
Network > PING
) to determine whether the far site is 
an H.323 device.
If it is not an H.323 device and you are sure the IP 
address is correct it is likely that address is not on 
your network. This is especially true with addresses 
beginning with 10., 168.254, 172.16 through 172.31, 
or 192.168, which are private networking addresses.
If you are unable to place 
calls to known sites on your 
network, the VSX system 
might need to be registered 
to a gatekeeper that blocks 
calls from unregistered 
systems. 
Register with the gatekeeper.
System displays a 
message indicating network 
congestion when placing an 
ISDN call immediately after 
starting the system.
This can occur if the system 
uses a PRI E1 network 
interface module that is 
connected to an Adtran 
Atlas 800 Plus module. 
After power on, the Adtran 
module must complete 
channel restarts before the 
system can complete ISDN 
calls.
Wait about three minutes and try the call again.