Network And Communications - Polycom ViewStation SP128 User Manual

Chapter 6

Network and Communications

Symptom
ISDN: Error Message when
dialing a video call.
ISDN: When placing a call,
progress icons do not turn
green.
System is waiting for an IP
address. System Info screen
shows "waiting" in IP address
field.
ISDN: Line Status icons do not
go away so video calls cannot be
made.
ViewStation SP User Guide
Cause
ISDN error code received from the
ISDN line.
Call Progress icons indicate that
the video call did not complete.
LAN or DHCP server is not
operating.
ISDN line is not present.
ViewStation SP is directly connected
to a U interface.
140
Troubleshooting
Solution
See "ISDN Information," on page
151.
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 to the
CO 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 Errors," on page 153.
Check connections to the LAN.
Contact your network administrator.
Check the ISDN line connections.
Install an NT-1 between your ISDN
line and the ViewStation SP ISDN
connection.
www.polycom.com