Polycom VSX 7000 Administrator's Manual page 100

VSX 7000 Series Administrator's Guide
Symptom
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 128 K does not work.
(The Call Progress circles do
not turn green, or remain
blue after the first channel
connects.)
Cannot select 112 or 128
speeds for BONDING calls
from the speed selection.
No audio in a call.
The people at the far site
cannot hear you.
One or more system
components do not operate
properly.
100
Cause
Switch protocol issue.
The far site may be unable to accept
calls above 128 K.
Speeds do not show when selecting
the speed icon.
The far site is muted.
The monitor's audio inputs are not
connected properly.
No power to near site microphone pod.
The components are not powered on.
The components are not connected
properly.
Solution
Start by calling the far site at 1x56, 1x64,
2x56, or 2x64K, as appropriate. This will
verify the primary number. If these calls
complete, try 256K, then 384K.
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.
Add line speeds on the Admin Settings >
Video Network > Call Quality > Dialing
Speeds screen.
Look for the far site Mute icon. Ask the far
site to unmute the microphone.
Check audio output using the Speaker
Test screen under
Diagnostics > Audio. You should hear a
400 Hz tone.
Ask someone at the far site to speak into
the microphone, and check the Far Site
Audio meter on the Audio Meter screen
under Diagnostics > Audio to determine
whether your system is receiving audio.
Check the conference link cable.
Replace the subwoofer - there is a
problem with the power supply.
Verify that components' power cords are
connected to power outlets, and that they
have been powered on.
Verify that the cables are connected
correctly according to the installation
procedures in Setting Up the System on
page 19.
www.polycom.com/videodocumentation