Polycom VSX Series Administrator's Manual page 186

Administrator's Guide for the VSX Series
Audio
Symptom
No audio at your site
7 - 22
Problem
The far site is muted.
The volume may be turned
all the way down.
VSX 7000: The midrange
speaker and subwoofer
may be turned off.
This happens if stereo is
enabled. This is possible
even when you have not
set up the system to use
stereo.
The far site's microphones
are not placed correctly.
The far site's microphone
is not connected or does
not have power.
Too many line errors.
ISDN voice algorithm is
incorrect.
The volume is turned all
the way down on the
monitor or external audio
system.
The monitor's audio inputs
are not connected
properly.
The system's audio
outputs are not connected
properly.
Corrective action
Look for the far site Mute icon. Ask the far site to unmute
the microphone.
Note: The far site's microphone may be muted even if you
do not see a far site Mute icon.
Use the remote control to turn up the volume.
Check the monitor's or external audio system's volume
setting. Then check the system's audio output using the
Speaker Test screen under Diagnostics > Audio. You
should hear a 400 Hz tone.
Go to System > Admin > Audio Settings and select
twice.
Make sure that Midrange Speaker and Subwoofer
Speaker are both On.
Ensure that each person who speaks is facing a
microphone and is close enough to it.
Ask the far site to check the cable to the microphone.
Try the call again later.
Go to System > Admin > Network > ISDN.
Change the ISDN Voice Algorithm selection (aLaw or
uLaw).
Turn up the volume on the appropriate device. After that,
you can use the remote control to adjust the volume.
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 system's audio connections to the monitor, or
to the external audio system if one is connected.
Verify that the system is connected to the correct audio
connectors on the monitor.
www.polycom.com/videodocumentation