Polycom VSX Series manual Go to System Admin Settings Network Isdn

Administrator’s Guide for the VSX Series

Symptom	Problem	Corrective action
No audio at your site.	ISDN voice algorithm is	Go to System > Admin Settings > Network > ISDN.
(Continued)	incorrect.	Change the ISDN Voice Algorithm selection (aLaw
		or uLaw).
	A single monitor VGA	Check the system’s audio connections to the
	configuration does not have	external audio system.
	an external audio system.
	The monitor’s audio inputs	Check audio output using the Speaker Test screen
	are not connected properly.	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.
	The system’s audio outputs	Check the system’s audio connections to the
	are not connected properly.	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.

7 - 24