Imux - Polycom ViewStation FX4000 User Manual

IMUX

Symptom
Cannot dial remote
system in BONDING 384
K calls
Dialing a remote site in
calls above 128 K does
not work.
System will not start.
Cannot select 112 or 128
speeds for BONDING
calls from the speed
selection icon on the
Video Phone.
© Polycom, Inc. 2002
Cause
The call progress circles only
show blue or yellow.
Switch protocol issue.
The Call Progress circles do
not turn green, or remain
blue after the first channel
connects.
The system restarts over and
over again.
Speeds do not show when
selecting the speed icon.
Chapter 8 - Troubleshooting
Solution
Start by calling the far-site at 1x64 or 2x64K.
This will verify if the primary number is
correct. 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 Telco.
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 with connections 1 - 4 on
the IMUX.
Defective cable between the IMUX and the
ViewStation FX or VS4000 . Check that the
green lights on each ISDN card are on and
that the green light on the top of the IMUX is
on (red on older units). The cable from the
IMUX to the ViewStation FX or VS4000 is a
straight RJ-45 x RJ-45 cable. Bad power
supply.
Add line speeds by going to IMUX Dialing
Speeds screen.
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