Polycom ViaVideo manual Bandwidth option, InfoSetupH.323QOS

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Appendix CTroubleshooting

Problem	Explanation	Solution

Video is out of focus.	Either the camera is out of	Use the focus wheel above
	focus, or there is not enough	the camera lens to adjust
	light in the area and the	focus.
	camera cannot generate a	If this does not resolve the
	clear image.	If this does not resolve the
	clear image.	problem, add more light to
		problem, add more light to
		the area.

Video has lots of	There is not enough light for	Add more light to the area.
noise/colored dots appear in	the ViaVideo camera to
my picture.	operate properly.

Frame refresh rate is low.	The lighting in your office is	Add more light to the area.
	insufficient and ViaVideo is
	automatically compensating
	for this by increasing the
	exposure time so that it can
	gather more light.

The near video display is	Near video appears darker	Although there is usually no
dark.	in the ViaVideo application	problem with the transmitted
	than it does on the far site.	image, using a dark
		background, or wearing
		dark clothing always
		provides for better image
		quality.

A lightning bolt is displayed	There has been an error in	1. Activate the Dynamic
on-screen during calls.	data transmission outside of	Bandwidth option
	normal parameters.	(System
	Although this is not a	Info>Setup>H.323>QOS)
	Although this is not a	2. Try making calls at a
	serious error, you may have	2. Try making calls at a
	selected a calling speed that	lower speed, or check
	is too high for your network	with your system
	bandwidth.	administrator for the
		optimum speed.

© Polycom, Inc.

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ViaVideo User’s Guide

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Contents ViaVideo User’s Guide Page Other Restrictions WarrantyTrademark Information Patent InformationRegulatory Notices FCC Notice Important SafeguardsUnderwriters’ Laboratories’ Statement RADVision StatementContents Network Connection System Information and DiagnosticsAudio Connection Troubleshooting Contents ViaVideo User’s Guide Viii Hardware Requirements System Requirements and InstallationSoftware Requirements Installing SoftwareInstalling Hardware Turn on the Camera Starting ViaVideoViaVideo built-in microphone Initial SetupHeadset with microphone Camera Calibration Using Manual DialingPlacing a Call Info icon Call status light IP address Chapter Using the Address Book or Speed Dialing New entry Edit entry Delete entry On-Screen Remote Control Answering Calls Ending a CallClosing ViaVideo Chapter Calling Features Using ViaVideoHang Up Using the Remote ControlAudio Mute VolumeSnapshot Window Controls Information Screen AccessPicture in Picture PIP Minimize WindowSending Snapshots Re-Size the ViaVideo DisplayLeaving a Callback Message Address Book and Speed Dial Using the Address BookDo This Local Entries Local and Global Address Book EntriesGlobal ILS Server Entries Display Global Address Go to the Directory Services screenRegister This System When Powered On Lock Using Speed DialDelete All Controlling Audio Controlling Audio and VideoVia the On-Screen Remote DialVia the Audio Screen Mute Auto Answer Calls in the Audio screen System Muting VideoChapter Multiple IP Addresses Collaboration and Application SharingChapter Using the System Information Screens System Information and DiagnosticsSystem Information and Diagnostics Diagnostics Network Statistics Video Jitter Advanced StatisticsAudio Jitter Call Status Reset System Camera Calibration Generate Tone Setup General Auto Start ViaVideo When Auto Start ViaVideo is selected323 Auto AnswerShow Animations Show Half-Size Display When Show Half-Size Display isUser Name MailDirectory Services Display Global Addresses Register this system when starting ViaVideoLAN and Internet Default Gateway Wins ResolutionHost Name IP AddressAudio Master Volume Volume ControlWave Volume LineViaVideo Software SoftwarePC Software Dialing Speeds SetupGatekeeper Display IP Dialing Extension 323Multiple IP Addresses Gatekeeper Dialing Speeds Use Fixed Ports Quality of Service and FirewallsNAT outside WAN address Auto discover NAT IP addressIP Precedence Dynamic BandwidthChapter PC with Speakers Audio ConnectionPC with Headphones Headphones Only Headset with Attached Microphone Simple Connection Just a Modem, Thanks Pick Your Connection TypeRouter With Firewall Router With Firewall, Using a DMZRouter With NAT, No Firewall Through a Virtual Private Network Configure Your ConnectionSelect the System is Behind a NAT option Configure your ViaVideo for NATWhen you select Auto discover NAT IP Address, ViaVideo System Information screen Open and Assign Ports in the FirewallRouter With Firewall, Using a DMZ Assign your ViaVideo to the DMZ Through a Virtual Private Network Appendix What’s a Firewall? Is it Safe? Opening PortsPort Number Assignation What’s a DMZ? What’s a Network Address Translator? Appendix Problem Explanation Solution General TroubleshootingInfoDiagnosticsGenerate Audio TroubleshootingWave, and Master Volume ControlsWindows Control Panel Video TroubleshootingBandwidth option InfoSetupH.323QOSInstallation Errors Error MessagesErrors Error Message Explanation SolutionSetupH.323 Gatekeeper settingAppendix C