Polycom VSX 3000 Administrator's Manual page 155

Symptom
Cannot complete calls to
sites that do not use
encryption.
Cannot complete
Conference on Demand
calls to ISDN systems when
dialed from an H.323-only
system.
Cannot dial remote system
in BONDING 384 K calls.
(The call progress circles
only show blue or yellow.)
Dialing a remote site in
calls above some particular
speed does not work. (The
call progress circles do not
turn green, or remain blue
after the first channel
connects.)
Cannot select the desired
speeds for BONDING calls
from the speed selection.
Multipoint calls downspeed
when a voice-only call is
added.
Voice-only calls cannot be
placed using a set-top VSX
system.
Voice-only calls cannot be
placed using a VSX 7000e
or VSX 8000 system.
Hanging up the
SoundStation VTX 1000
conference phone does not
end the video call.
Problem
The system displays a
message stating that
encryption is required.
The ISDN system numbers
provided are not complete.
Switch protocol issue.
The far site may be unable
to accept calls above this
speed.
Speeds do not show when
selecting the speed icon.
This is normal.
This is normal.
The system might not have
a good connection to a
phone line.
This is normal.
Corrective action
Your system is configured to require all calls to be
encrypted, and encryption is not available at the far
site.
Provide the full international numbers, including
country code, for ISDN systems.
Start by calling the far site at 1x56, 1x64, 2x56, or
2x64 K, as appropriate. This will verify the primary
number. If these calls complete, try 256 K, then
384 K.
Being able to dial non-bonded but unable to dial
bonded to all locations is usually a switch protocol
issue. Verify your ISDN provisioning with the
telephone service provider.
Go to the Call Status screen. Highlight each of the
circles for each of the channels dialed. The number
dialed for each channel will be displayed as you
highlight the corresponding circle. Make sure that the
far site has entered the number for each of its ISDN
lines correctly.
The numbers for Line 1 - Line 4 should correspond to
connections 1 - 4 on the Quad BRI network interface
module.
Lower the number of lines to dial in parallel.
1. Go to Admin Settings > Network > Call
Preference and select
the Call Speeds screen.
2. Select the desired call speeds.
No action is necessary.
Place voice-only calls using the
SoundStation VTX 1000 conference phone.
Use a telephone to verify that there is a dial tone on
the line connected to the input on the VSX system.
Use the SoundStation VTX 1000 conference phone
END VIDEO soft key or the VSX system remote
control to end video calls.
Troubleshooting
four times to go to
12 - 11