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Chapter 6 Troubleshooting
ViewStation User Guide 184 www.polycom.com
IMUX
Symptom Cause Solution
Cannot dial remote
system in BONDING 384
Kbps calls.
Call progress circles only
displays blue or yellow.
Start by calling the far-site at 1x64 or 2x64
Kpbs. This verifies if the primary number is
correct. If these calls complete, try 256 Kbps
then 384 Kbps.
Dialing a remote site in
calls above 128 Kbps
does not work.
Call progress circles do not
turn green, or remain blue
after the first channel
connects.
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. The
numbers for Line 1 - Line 4 should
correspond with connections 1 - 4 on the
IMUX. See “ISDN Errors” on page 205.
Cannot select 112 or 128
speeds for BONDING
calls from the Speed
Selection icon on the
Video Phone.
Speeds do not show when
selecting the Speed icon.
Add line speeds by going to the IMUX
Dialing Speeds screen.