Quality of Service and Firewalls | Polycom ViaVideo guide

Chapter 3

System Information and Diagnostics

We recommend that you select line speeds that you know your network can handle. If you are not sure which line speeds are best, contact your network administrator.

ViaVideo provides ultra-low speeds, 80 and below, to provide for connection over very low bandwidth networks, such as dial-up modems. Although the low transfer rate results in blocky image transmission, audio quality is not affected.

Quality of Service and Firewalls

In this screen, you can configure your quality of service, Network

Address Translator (NAT), and firewall options.

Use Fixed Ports	Specifies the fixed ports assigned to
	ViaVideo when working with a firewall.

System is behind a NAT Alerts ViaVideo to use the IP address that appears in the NAT outside (WAN) address field as its external IP address. When using a Virtual Private Network (VPN) for your network connection, make sure that System is behind a NAT is not selected.

ViaVideo User’s Guide

56

www.polycom.com

Image 64

Polycom ViaVideo manual Quality of Service and Firewalls, Use Fixed Ports

Contents

ViaVideo User’s Guide Page Warranty Other RestrictionsTrademark Information Patent Information Important Safeguards Regulatory Notices FCC NoticeUnderwriters’ Laboratories’ Statement RADVision Statement Contents Audio Connection System Information and DiagnosticsNetwork Connection Troubleshooting Contents ViaVideo User’s Guide Viii System Requirements and Installation Hardware Requirements Installing Hardware Installing SoftwareSoftware Requirements Starting ViaVideo Turn on the Camera Initial Setup ViaVideo built-in microphone Headset with microphone Placing a Call Using Manual DialingCamera Calibration 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 Ending a Call Answering Calls Closing ViaVideo Chapter Using ViaVideo Calling Features Using the Remote Control Hang Up Snapshot VolumeAudio Mute Information Screen Access Window ControlsPicture in Picture PIP Minimize Window Re-Size the ViaVideo Display Sending Snapshots Leaving a Callback Message Using the Address Book Address Book and Speed Dial Do This Local and Global Address Book Entries Local Entries Global ILS Server Entries Register This System When Powered On Go to the Directory Services screenDisplay Global Address Delete All Using Speed DialLock Controlling Audio and Video Controlling AudioVia the On-Screen Remote Dial Via the Audio Screen Muting Video Mute Auto Answer Calls in the Audio screen System Chapter Collaboration and Application Sharing Multiple IP Addresses Chapter System Information and Diagnostics Using the System Information Screens System Information and Diagnostics Diagnostics Network Statistics Audio Jitter Advanced StatisticsVideo Jitter Call Status Reset System Camera Calibration Generate Tone Setup Auto Start ViaVideo When Auto Start ViaVideo is selected General323 Auto Answer Show Half-Size Display When Show Half-Size Display is Show AnimationsUser Name Mail Directory Services LAN and Internet Register this system when starting ViaVideoDisplay Global Addresses Wins Resolution Default GatewayHost Name IP Address Audio Volume Control Master VolumeWave Volume Line PC Software SoftwareViaVideo Software Gatekeeper SetupDialing Speeds 323 Display IP Dialing Extension Multiple IP Addresses Gatekeeper Dialing Speeds Quality of Service and Firewalls Use Fixed Ports Auto discover NAT IP address NAT outside WAN addressIP Precedence Dynamic Bandwidth Chapter Audio Connection PC with Speakers PC with Headphones Headphones Only Headset with Attached Microphone Pick Your Connection Type Simple Connection Just a Modem, Thanks Router With NAT, No Firewall Router With Firewall, Using a DMZRouter With Firewall Configure Your Connection Through a Virtual Private Network When you select Auto discover NAT IP Address, ViaVideo Configure your ViaVideo for NATSelect the System is Behind a NAT option Open and Assign Ports in the Firewall System Information screen Router With Firewall, Using a DMZ Assign your ViaVideo to the DMZ Through a Virtual Private Network Appendix What’s a Firewall? Port Number Assignation Opening PortsIs it Safe? What’s a DMZ? What’s a Network Address Translator? Appendix General Troubleshooting Problem Explanation Solution Audio Troubleshooting InfoDiagnosticsGenerate Volume Controls Wave, and Master Video Troubleshooting Windows Control Panel InfoSetupH.323QOS Bandwidth option Error Messages Installation ErrorsErrors Error Message Explanation Solution Gatekeeper setting SetupH.323 Appendix C