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Chapter 6 Troubleshooting
ViewStation User Guide 182 www.polycom.com
Network and Communications
Symptom Cause Solution
ISDN: Error Message when
dialing a video call.
ISDN error code received from the
ISDN line.
See “ISDN Information” on page
203.
ISDN: When placing a call,
progress icons do not turn
green.
Call Progress icons indicate that
the video call did not complete.
The Call Progress icons indicate
the call state when placing or
receiving a video call on each ISDN
channel:
1/4 Blue - Ringing.
1/2 Yellow - Call connected and is
ringing at the far site.
3/4 Orange - Negotiation.
Full Green - Connected.
Go to the Call Status screen.
Highlight each of the circles for each
of the channels dialed. The numbers
dialed for each channel are
displayed as you highlight the
corresponding circle. Make sure that
the far site has entered the number
for each ISDN line correctly. See
“ISDN Information” on page 203.
System is waiting for an IP
address. System Info screen
shows “waiting” in IP address
field.
LAN or DHCP server is not
operating.
Check connections to the LAN.
Contact your network administrator.
ISDN: Line Status icons do not
go away so video calls cannot be
made.
ISDN line is not present. Check the ISDN line connections.
ViewStation is directly connected to
a U interface.
Install an NT-1 between your ISDN
line and the ViewStation ISDN
connection.