Polycom ViewStation manual Imux

Chapter 6 Troubleshooting

IMUX

Symptom

Cause

Solution

Cannot dial remote	Call progress circles only	Start by calling the far-site at 1x64 or 2x64
system in BONDING 384	displays blue or yellow.	Kpbs. This verifies if the primary number is
Kbps calls.		correct. If these calls complete, try 256 Kbps
		then 384 Kbps.
Dialing a remote site in	Call progress circles do not	Go to the Call Status screen. Highlight each
calls above 128 Kbps	turn green, or remain blue	of the circles for each of the channels dialed.
does not work.	after the first channel	The numbers dialed for each channel are
	connects.	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 do not show when	Add line speeds by going to the IMUX
speeds for BONDING	selecting the Speed icon.	Dialing Speeds screen.
calls from the Speed
Selection icon on the
Video Phone.

ViewStation User Guide 184 www.polycom.com