Polycom PVX Instruction Manual

May 2006
3725-22754-006/A 1
Release Notes
Polycom PVX Version 8.0.2
Polycom is pleased to announce the release of Polycom PVX™ version 8.0.2.
Polycom PVX version 8.0.2 delivers unprecedented technology and
performance to computer video conferencing. With premium audio and video
algorithms and enhanced collaboration features, the Polycom PVX software
delivers power and performance never before seen in computer video
conferencing.
Working together with a computer and a standard USB camera, the Polycom
PVX 8.0.2 software application brings video conferencing to your desktop. It
is ideal for employees who work from home, sales or consulting professionals
who travel, educators conducting distance learning events, or health care
professionals delivering services in remote facilities. Polycom PVX software
extends Polycom’s unmatched capabilities and conference room performance
to the desktop.
Polycom PVX 8.0.2 will continue to support the ViaVideo™ and ViaVideo II
cameras. However, Polycom recommends using standard USB 2.x webcams to
achieve the highest video quality. When you choose a standard webcam, the
computer’s processing capabilities let you use additional features such as
H.264 and Siren™ 14. View-only mode allows users without cameras to
participate in video conferences using audio and to share content using
People+Content™ and standards-based H.239.
What’s New in Release 8.0.2?
Polycom PVX 8.0.2 is a maintenance release. This release includes general
improvements to SIP interoperability and stability, support for the SIP Express
Router (SER) SIP server, and other minor improvements.
What’s New in Release 8.0.1?
Polycom PVX 8.0.1 is a maintenance release. A number of minor
improvements have been added to PVX for this release; however, the major
change is that you can now specify the CPU resources required by your
camera.
A new tab, the Advanced Tab, has been added to the Video page. Settings on
this tab allow you to configure PVX to compensate for a higher CPU load from
your camera driver. You can lower the estimated CPU power by a fixed
amount and, thereby, enhance the quality of your PVX video.

Release Notes
Polycom PVX Version 8.0.2
23725-22754-006/A
What’s New in Release 8.0?
•VGA (640x480) Resolution Support - Polycom PVX 8.0.0 supports sending
and receiving video at VGA and half-VGA resolutions. This can be
enabled on systems with higher speed CPUs and USB 2.0 cameras.
•Session Initiation Protocol (SIP) Support - Point-to-point SIP calling, direct
dialed or through a Nortel™ MCS or Microsoft® LCS 2005 (SP1) proxy
server, is supported.
•Universal Plug and Play (UPnP™) Support - Polycom PVX 8.0.0 supports
secure firewall traversal calls using UPnP-enabled home routers.
•Automatic Gain Control - Significant improvements were made to audio
input levels. A new automatic gain control was added that adjusts
microphone input to minimize echo reflected back to the far site. It also
adjusts the audio level into a conference to improve the volume match
with other endpoints connected to an MCU.
•H.239 Standards Based People+Content - Polycom PVX has full support
for H.239 standards based People+Content.
•Improved Calling with People+Content - The frame rate for people video
is no longer affected by enabling People+Content. At the point that
content is sent or received, Polycom PVX adjusts to leave more CPU cycles
for content video.
•Asymmetric Call Support - Polycom PVX 8.0.0 supports calls with ADSL
or cable modems with asymmetric bandwidth for upload and download.
•Network Adapter Management - Polycom PVX 8.0.0 offers more flexibility
in controlling which network adapter is used for video calls. The Network
setup page was streamlined to make configuration easier.
•Global Directory Server (GDS) ISDN Dialing Enhancement - Endpoints
listed in a directory with both an ISDN number and an ISDN extension
will be dialed by appending the extension to the number separated by a
delimiter of ##.
•Recent Calls List - The list includes incoming calls that were not answered.
•New Security Features - New security setup options allow users to:
—Restrict SIP setup page access.
—Lock user settings and prevent factory default settings from being
restored inadvertently.
—Disable location profile settings.

Release Notes
Polycom PVX Version 8.0.2
3
•User Interface Improvements
—Enhanced full-screen video allows users to see the Toolbar and PIP
while showing full-screen video. In earlier versions, switching to
full-screen video disabled access to all other windows except the
video window, which had exclusive use of the desktop.
—For systems without a camera, a user-configurable image can be
displayed in the local video window.
—Users now have direct access to the camera, tone pad, and data
sharing controls from the main Toolbar.
—By using Location Profiles, users can better control multiple location
network settings.
•Additional Software Updates
—Users can disable the H.264 video algorithm on the Setup > Video
page.
—The default media port range was changed to 3230-3237.
—T.120 is disabled by default.
—The web management interface is no longer supported.

Release Notes
Polycom PVX Version 8.0.2
43725-22754-006/A
Hardware and Software Requirements
Windows® Windows XP with Service Pack 1 or later (recommended)
Windows 2000 with Service Pack 4 or later
Processor Webcam with computer processing (recommended)
H.263 People video only:
•1.0 GHz Intel® Pentium® 3
•1.2 GHz Intel Pentium 4
•900 MHz Intel Pentium M
•1800+ AMD™ Athlon™ XP
H.264 People video only:
•1.5 GHz Intel Pentium 4
•1.2 GHz Intel Pentium M
•1800+ AMD Athlon XP
People+Content:
•2.0 GHz Intel Pentium 4
•1.4 GHz Intel Pentium M
•1800+ AMD Athlon XP
ViaVideo I and ViaVideo II camera
H.263 People video only:
•800 MHz Intel Pentium® III
•Any Intel Pentium 4 or Intel Pentium M
•1800+ AMD Athlon XP
People+Content:
•1.2 GHz Intel Pentium 4
•900 MHz Intel Pentium M
•1800+ AMD Athlon XP
(Polycom PVX requires a processor that supports the Intel SSE™
processor extensions. SSE is not supported on the Pentium II
family or AMD Athlon CPUs prior to the Athlon XP.)
RAM 256 MB
Note: More RAM may be required for users running multiple
applications.
Video Memory Minimum requirement: 16 MB
Hard Drive Space 60 MB available (for Polycom PVX software)
USB Camera USB 1.x or 2.x webcam, ViaVideo, or ViaVideo II camera (USB
2.x webcam recommended)
(camera is optional for view-only calls)
Audio • Headphones
•Microphone - options include a headset or webcam with
built-in microphone or a standalone analog microphone.
•Computer speakers (external or internal)
•Speakers connected directly to ViaVideo
Monitor SVGA (800 x 600) or higher resolution
Network Access Broadband IP (64 kbps and above)

Release Notes
Polycom PVX Version 8.0.2
5
For information about setting up Polycom PVX for use with a ViaVideo or
ViaVideo II, see the documentation that came with the camera. For information
about setting up Polycom PVX for use with a webcam, see the documentation
that comes with the software.
Supported Audio Devices and Webcams
Polycom PVX software is tested extensively with a wide range of audio devices
and webcams. For a list of compatible devices and for important information
about factors you should consider when selecting your audio and video devices,
refer to the Selecting Audio and Video Devices for Use with Polycom PVX document,
available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
SoundStation2 and SoundStation2W
To make calls with PVX using the Polycom SoundStation2™ or
SoundStation2W™, you need the Computer Calling Kit. For more information
about this kit, refer to the Selecting Audio and Video Devices for Use with Polycom
PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
System Performance
For systems with a ViaVideo or ViaVideo II camera, most of the media
processing is done by the camera. People+Content sharing requires computer
processing and, therefore, demands a higher performance processor. Systems
with a 1.2 GHz Pentium 4 or later can support People+Content. Content sharing
will benefit from additional CPU speed.
For systems with a webcam, all of the processing is done on the computer. There
are a wide range of computer performance levels. To optimize the video
experience on each system, a CPU resource manager within the Polycom PVX
software gauges the system performance and adjusts the media features
accordingly.
Microsoft Internet
Explorer® Version 6.0 or later
Windows Media
Player® Version 9.0 or later
Microsoft DirectX®
Software Version 9.0b or later

Release Notes
Polycom PVX Version 8.0.2
63725-22754-006/A
You can also adjust the way Polycom PVX allocates system resources between
PVX and other applications. To do this, on the Setup > General page, click
Performance. Choose one of these performance settings:
Factors Affecting Video
The video format in a call depends on many factors — both on the near-site
system and on the far-site system.
Some of the other factors that can affect the video format include:
•System processor and speed
•PVX settings under Setup > General > Performance
•PVX settings under Setup > Video
•Gatekeeper configuration under Setup > H.323
•Audio format
•Presence of content video (send or receive)
•Camera type
Camera Driver Load
The For the camera you have selected, specify the camera driver’s load on the
system setting on the Setup > Video > Advanced page allows you to configure
PVX properly, especially if you need to compensate for a higher CPU load
from the camera driver. This setting enables you to lower the estimated CPU
power by a fixed amount so you can enhance the quality of your PVX video.
The original video capture driver load for PVX is approximately 150 MHz
worth of CPU resources. Therefore, on a 1.5 GHz computer, the video capture
driver will use 10% of the CPU (you can check this using the Task Manager).
On a faster computer, the load will be less, such as 5% on a 3.0 GHz system.
Setting Description
Balanced Good video without too great an impact on general application
performance.
Other Applications More processing power for running critical applications while
reducing the processing allocated to people video and audio.
Polycom PVX Great audio and video while reducing the responsiveness of
other applications.

Release Notes
Polycom PVX Version 8.0.2
7
In the For the camera you have selected, specify the camera driver’s load on
the system field on the Setup > Video > Advanced page:
The following table lists some examples of what you should specify for the For
the camera you have selected, specify the camera driver’s load on the system
setting for some of the webcams supported by PVX:
Note that, for best performance, only one USB camera at a time should be
plugged into the computer.
If you select... Subtract this amount from your actual CPU speed...
Low None
Medium 200 MHz
High 600 MHz
For this camera... Select this setting...
AVerMedia® AVerTV™ GO 007 FM Plus PCI Low
Creative® WebCam Live!® Motion High
Creative WebCam Live! Pro Medium
GlobalMedia® IREZ™ KD 1394 Low
GlobalMedia iREZ K2 USB 2.0 Medium
Logitech® QuickCam® for
Notebooks Pro P/N 961398-04030 Driver version 9.5.0 High
P/N 961240-04030
Driver version 8.4.1 Medium
Logitech QuickCam Pro 4000 Driver version 7.3.0 Low
Driver version 8.4.8 Low
Driver version 9.0.2 Medium
Logitech QuickCam Pro 5000 Driver version 9.0.2 Low
Logitech QuickCam Fusion™ Driver version 9.0.2 Medium
Note: If the Logitech Audio Echo
Canceller (AEC) is enabled,
select High.
Logitech QuickCam Orbit MP Driver version 9.0.2 Medium
Veo™ Velocity Connect Medium
V-Stream TV2800 (V-Stream Xpert DVD Maker USB 2.0) Low

Release Notes
Polycom PVX Version 8.0.2
83725-22754-006/A
For important additional information about the camera driver load, refer to the
Selecting Audio and Video Devices for Use with Polycom PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
PVX 8.0.2 Processor/Bit-rate/Resolution Tables
The tables in this section provide overall targets for different computer processor
types and call speeds.
Keep the following in mind when viewing the tables:
•The values listed in the tables assume that PVX is set to Balanced on the
Setup > General > Performance page. If you select Other Applications on
this page, PVX will use less processing power; if you select Polycom PVX,
PVX will use more of the CPU. For more information, refer to System
Performance on page 5.
•The values listed are based on the Low camera driver load setting. To check
this setting, see the For the camera you have selected, specify the camera
driver’s load on the system field on the Setup > Video > Advanced page. If
your camera driver load setting is set to High or Medium, you must
manually compensate for the different setting as follows:
—If your camera driver load setting is set to High, subtract 600 MHz from
the speed shown. For example, if your system’s CPU speed is 2000 MHz,
subtract 600 MHz from that, for a total of 1400 MHz.
—If your camera driver load setting is set to Medium, subtract 200 MHz
from the speed shown. For example, if your system’s CPU speed is 2000
MHz, subtract 200 MHz from that, for a total of 1800 MHz.
For more information about the camera driver load, refer to the Selecting Audio
and Video Devices for Use with Polycom PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
•The values listed are set to maximize the video experience for a wide variety
of user situations and can change in each release.

Release Notes
Polycom PVX Version 8.0.2
9
H.264 People Video Receive
H.264 People Video Transmit with Smoother Motion (default)
Processor Resolution Options Maximum Receive People
Video Rate
Intel Pentium 4 1.5 GHz VGA/4@15 384 kbps
Intel Pentium M 1.8 GHz VGA/4@30 384 kbps
Intel Pentium 4 2.0 GHz
Intel Pentium M 1.4 GHz
AMD Athlon XP 1800+
VGA/4@30
VGA/2@15 1920 kbps
Intel Pentium 4 2.4 GHz VGA/4@30
VGA/2@15 1920 kbps
Intel Pentium 4 3.2 GHz
Intel Pentium 4 2.8 GHz (HTT) VGA/4@30 VGA/2@30
VGA@15
1920 kbps
Intel Pentium 4 3.6 GHz
Intel Pentium 4 3.4 GHz (HTT) VGA/4@30
VGA/2@30
VGA@30
1920 kbps
Processor Call Rates (kbps) Maximum
People
Video Rate
<128 128 - <256 256 - <512 512 - 1920
Intel Pentium 4
1.5 GHz VGA/4@15 VGA/4@15 VGA/4@15 N/A 384 kbps
Intel Pentium 4
1.8 GHz VGA/4@30 VGA/4@30 VGA/4@30 N/A 384 kbps
Intel Pentium 4
2.0 GHz
Intel Pentium M
1.4 GHz
AMD Athlon XP
1800+
VGA/4@30 VGA/4@30 VGA/4@30 VGA/4@30 1920 kbps
Intel Pentium 4
2.4 GHz VGA/4@30 VGA/4@30 VGA/4@30 VGA/4@30 1920 kbps
Intel Pentium 4
3.2 GHz
Intel Pentium 4
2.8 GHz (HTT)
VGA/4@30 VGA/4@30 VGA/2@30 VGA/2@30 1920 kbps
Intel Pentium 4
3.6 GHz
Intel Pentium 4
3.4 GHz (HTT)
VGA/4@30 VGA/4@30 VGA/2@30 VGA@30 1920 kbps

Release Notes
Polycom PVX Version 8.0.2
10 3725-22754-006/A
H.264 People Video Transmit with Sharper Image
In the tables above:
•VGA/4 is 320x240 (or CIF/SIF for interop)
•VGA/2 is 320x480 (or 2CIF/2SIF for interop)
•VGA is 640x480 (or 4CIF/4SIF for interop)
•Processors are Pentium 4 or Pentium 4 with HTT
H.263 People Video
H.263+ video is scaled in a similar way to H.264. However, it is not as efficient
and it is not used at any call rate unless H.264 is disabled on PVX or the far site
does not support H.264.
For example:
•On a 2.4 GHz Pentium 4, PVX will support 1920 kbps VGA/4@30fps
•On a 3.6 GHz Pentium 4, PVX will support 1920 kbps VGA@30fps
Processor Call Rates (kbps) Maximum
People
Video Rate
<128 128 - <256 256 - <512 512 - 1920
Intel Pentium 4
1.5 GHz VGA/4@15 VGA/4@15 VGA/4@15 N/A 384 kbps
Intel Pentium 4
1.8 GHz VGA/4@30 VGA/4@30 VGA/4@30 N/A 384 kbps
Intel Pentium 4
2.0 GHz
Intel Pentium M
1.4 GHz
AMD Athlon XP
1800+
VGA/4@30 VGA/2@15 VGA/2@15 VGA/2@15 1920 kbps
Intel Pentium 4
2.4 GHz VGA/4@30 VGA/2@15 VGA/2@15 VGA/2@15 1920 kbps
Intel Pentium 4
3.2 GHz
Intel Pentium 4
2.8 GHz (HTT)
VGA/4@30 VGA/2@15 VGA@15 VGA@15 1920 kbps
Intel Pentium 4
3.6 GHz
Intel Pentium 4
3.4 GHz (HTT)
VGA/4@30 VGA/2@15 VGA@15 VGA@30 1920 kbps

Release Notes
Polycom PVX Version 8.0.2
11
The CPU speed for H.263+ video is based on the Low camera driver load setting.
To check this setting, see the For the camera you have selected, specify the
camera driver’s load on the system field on the Setup > Video > Advanced page.
If your camera driver load setting is set to High or Medium, you must manually
compensate for the different setting as follows:
•If your camera driver load setting is set to High, subtract 600 MHz from the
speed shown. For example, if your system’s CPU speed is 2000 MHz, subtract
600 MHz from that, for a total of 1400 MHz.
•If your camera driver load setting is set to Medium, subtract 200 MHz from
the speed shown. For example, if your system’s CPU speed is 2000 MHz,
subtract 200 MHz from that, for a total of 1800 MHz.
For more information about the camera driver load, refer to the Selecting Audio
and Video Devices for Use with Polycom PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
Installing Polycom PVX Version 8.0.2
Before You Begin
If you have ViaVideo version 5.x or earlier currently installed on your system and
you wish to preserve user preferences and directories, you will first need to
upgrade to Polycom PVX version 6.x before upgrading to PVX version 8.0.2.
Polycom PVX 6.x downloads and release notes are available on Polycom's
website at www.polycom.com/videosoftware.
If you have ViaVideo version 5.x or earlier and do not need to preserve user
preferences and directories, then use the Windows Add/Remove Programs
Control Panel to uninstall ViaVideo and install PVX version 8.0.2 as directed in
the next section.
If you are upgrading from PVX version 8.0.0, be sure that you select Use local
settings on the Setup > GMS page before you begin the upgrade to version 8.0.2.
(If Use provisioned settings is selected, some of the settings might get lost during
the upgrade.)

Release Notes
Polycom PVX Version 8.0.2
12 3725-22754-006/A
Updating to PVX Version 8.0.2
To install Polycom PVX 8.0.2 for the first time or to upgrade from Polycom PVX
6.x or 8.x:
1. Close any programs running on your computer.
2. If you are using a ViaVideo or ViaVideo II camera, make sure that the
camera is turned off.
3. Download the PVX version 8.0.2 installation file from the Polycom
website, www.polycom.com/videosoftware.
4. Double-click the downloaded installation file.
5. When the install wizard starts, follow the instructions on the screen.
6. When installation is complete, verify the new software version number in
the Polycom PVX System Information screen.
Tools for System Administrators
The tools listed in this document are being made available to system
administrators to facilitate deployment and management of PVX systems. The
PVXSET utility allows administrators to set or query PVX configuration
properties. The PVX Capability Viewer allows administrators to view the
video capabilities for a variety of system configurations.
While these tools are now being offered by Polycom, their immediate use is
contingent upon their implementation “as-is” and without technical support
from Polycom Services. Fully supported versions of these tools may be made
available in a future release of the Polycom PVX software.
As always, user feedback is encouraged. Your comments and suggestions will
assist in the future planning and development of these and other tools for
system administrators that will ultimately enhance the Polycom PVX user
experience. To submit feature enhancement ideas, go to www.polycom.com
and click on Support > Video > Suggest Product Enhancements.
Post-Installation Note:
Should you decide at any time to reinstall PVX version 6.x, you must first uninstall version
8.0.x using the Microsoft Windows Add/Remove Programs utility. Before uninstalling PVX,
make a note of your existing user settings and directories and back up any files that you
personally created and placed in the PVX program files directory, typically C:\Program
Files\Polycom\PVX, that you wish to save. All files in the PVX directory are deleted during the
uninstall process.

Release Notes
Polycom PVX Version 8.0.2
13
PVXSET Utility
Note: Polycom does not support the PVXSET utility.
PVXSET is an unsupported utility that enables administrators to set or query
PVX configuration properties. The PVXSET application and a sample .pvp file
(sample.pvp) are installed automatically when you install the PVX software.
The sample file contains additional information about using PVXSET.
When PVX is installed, the .pvp and .pvq file extensions are associated with
the PVXSET utility. Double clicking a file with one of these extensions will
cause PVXSET to process that file.
You can run PVXSET while the PVX application is open or closed. Please note
that if PVX is open when you set properties, some property changes may not
take effect until PVX is closed and restarted.
When you start PVXSET, you see a status dialog showing the name of the file
that is running and the completion status. Click Details to display each
property that was processed in a .pvp file.
Keep the following guidelines in mind when you create your .pvp and .pvq
files:
•List each property on a separate line.
•Blank lines are ignored.
•Use only valid property names. See sample.pvp for a list of recognized
property names.
•Start comment lines with a semicolon. Comments cannot be on the same
line as a property.
Using PVXSET to Set Properties
To set properties, you create an ASCII text file with a .pvp extension. This file
contains the properties and values you want to set. See the information
contained in the sample.pvp file for a list of recognized properties and the
allowable settings for each.
Use this format for each property. Note that if you leave the value blank, the
property is set to an empty value.
property_name = value
The following example sets the AES Encryption property to Auto:
; AES encryption: 0 - None, 1 - Auto
H323_ENCRYPTION = 1
Using PVXSET to Query Properties
To get properties, you create an ASCII text file with a .pvq extension. This file
contains the properties you want to query. See the information contained in
the sample.pvp file for a list of recognized properties and the allowable
settings for each.

Release Notes
Polycom PVX Version 8.0.2
14 3725-22754-006/A
When you run the query, the results are saved to a .pvp file in the same
directory and with the same root name as the source .pvq file. For example,
running C:\pvxsetfiles\gatekeeper.pvq generates a new text file named
C:\pvxsetfiles\gatekeeper.pvp.
Use this format for each property you want to query.
property_name =
The following example queries the system to discover the AES Encryption
setting.
; AES encryption: 0 - None, 1 - Auto
H323_ENCRYPTION =
Using .pvp Files to Initialize Systems for New Users
Most PVX properties are unique to each PVX user; however, some properties
are computer-specific (that is, they are common for all users on a particular
computer). When a new user launches PVX for the first time, PVX will
initialize properties for that user. If that user is the first user on the computer,
PVX will initialize the computer-specific properties, as well.
At first launch, PVX displays a setup wizard to help the user to set up the
system. Alternatively, an administrator could provide a .pvp initialization file
that contains the initial settings. This file could contain all or some of the
needed values. The file must be named InitConfig.pvp, and it must reside in
the same folder as the PVX executable, ViaVideoNG.exe (typically
C:\Program Files\Polycom\PVX). Refer to the sample.pvp file for more
information about creating an InitConfig.pvp file.
The first time each user on the computer opens PVX, PVX parses the
configuration file, sets the designated properties, and then proceeds with the
first-time-use initialization.
Running PVXSET from the Command Line
PVXSET supports three quiet modes when you run the application from the
command line.
• Normal mode displays all messages. For example, this command runs
sample.pvp in normal mode:
pvxset sample.pvp
• Super quiet mode suppresses all messages, progress messages, warning
message, and error messages. To run in super quiet mode, precede the file
name with /qq. For example, this command runs sample.pvp in super
quiet mode:
pvxset /qq sample.pvp
• Quiet mode suppresses all messages except error messages. To run in
quiet mode, precede the file name with /q. For example, this command
runs sample.pvp in quiet mode:
pvxset /q sample.pvp

Release Notes
Polycom PVX Version 8.0.2
15
PVXSET Feature Limitations
•When you use PVXSET to set the license number and key code running the
system for the first time, PVX crashes on startup. When you use PVXSET
to set the license number and key code running the system for the first
time, the software is not activated. To activate the license, run the setup
wizard, and then use PVXSET to set the license number and key code.
When you use PVXSET to set the license number and key code, calls are
limited to 5 minutes until PVX is restarted. PVXSET cannot be used to
query password values. If you attempt to query password values using a
.pvq file, the resulting .pvp password value will contain “<password
value is hidden.>” If you run this .pvp file, the password will be changed.
•When you use the PVXSET utility to set a property while PVX is shutting
down, PVXSET will fail to connect to VVManager. When you use the
PVXSET utility to set a property, none of the Out-of-Box setup pages are
shown. When you use the PVXSET utility to show all setup wizard pages,
none of the setup wizard pages are shown. When you use the PVXSET
utility to hide all setup wizard pages, the GENERAL_WIZ_SHOWPAGE
property is not always set correctly.
•PVX version 8.0.2 has improved and simplified the Quality of Service
(QoS) feature. To use the H323_QOS_ENABLE property to enable QoS,
remove the semicolon and use the value “TRUE”, as shown in this
example. To disable QoS, use the value “FALSE”.
;--------------------------------------------------
; Network Configuration
;--------------------------------------------------
; Enable Quality of Service (QoS) to give increased
; priority to video, audio,
; and far-end camera control that is transmitted on
; the network.
; Set to TRUE or FALSE.
H323_QOS_ENABLE = TRUE
•If you use a .pvp file to specify a gatekeeper, GDS, or ILS, the PVX will not
register with these servers until the PVX application is restarted.
•If you use PVXSET to change the system’s H.323 name, the H.323 name is
reset to the User Name when you restart PVX.

Release Notes
Polycom PVX Version 8.0.2
16 3725-22754-006/A
PVX Capability Viewer
The PVX Capability Viewer allows administrators to view the video capabilities
of various system configurations. This program can be found in the PVX
program files directory, typically C:\Program Files\Polycom\PVX.
To view the capabilities of a system:
1. Double-click the VvCapView.exe application file.
2. Do one of the following:
—To view the capabilities of the current system, clear Choose a different
PC configuration.
—To view the capabilities of other system configurations, click on the
Choose a different PC configuration check box, select a computer
model, and enter both the processor speed and size of the L2 cache.
3. Click View to view the Summary window, which displays system
capabilities in Balanced mode.
4. In the Summary window, click Details to view the system capabilities for
all three performance modes: Balanced, Favor Other Applications, and
Favor Polycom PVX.
5. In the Details window, click Save to save the capabilities detail to a text file.
The capabilities shown in the VvCapView.exe file are based on the Low camera
driver load setting. To check this setting, see the For the camera you have
selected, specify the camera driver’s load on the system field on the Setup >
Video > Advanced page. If your camera driver load setting is set to High or
Medium, the VvCapView.exe file does not reflect this, so you must manually
compensate for the different setting as follows:
•If your camera driver load setting is set to High, subtract 600 MHz from the
speed shown in the Speed field in the VvCapView.exe file. For example, if
the Speed field shows 2000 MHz, subtract 600 MHz from that, for a total of
1400 MHz.
•If your camera driver load setting is set to Medium, subtract 200 MHz from
the speed shown in the Speed field in the VvCapView.exe file. For example,
if the Speed field shows 2000 MHz, subtract 200 MHz from that, for a total
of 1800 MHz.
For more information about the camera driver load, refer to the Selecting Audio
and Video Devices for Use with Polycom PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
Network Profile Management and Configuration
PVX enables users to specify different network settings depending upon the
location in which they're using the system. System configurations can be set for
particular locations and the network settings can be saved as a named profile.

Release Notes
Polycom PVX Version 8.0.2
17
Several profiles can be created for a single user. Then, whenever the system is
moved to a different location, the profile selection can simply be changed
rather than having to change multiple network settings on various Setup
pages.
Location profiles are configured from the Setup > Network page. PVX
provides three default profiles: Office, Home, and Travel.
•To activate a profile, simply choose the location name from the list.
•To create a new profile, change a profile name or description, or copy, edit,
or delete a profile, simply click the Configure Profiles button.
All the configuration settings on the Network page apply to a location profile,
including all items on the Connection, Ports, QoS, and Bandwidth pages.
Other settings that are defined per location are:
•General > Call Settings Page
—Maximum time in call
•Video > Video Sources Page (for ViaVideo cameras only)
—Power Frequency
—60 Hz
—50 Hz
•H.323 Page
—Use PathNavigator™ OneDial for gateway calling
—Dial Prefix
Creating .plcm Speed-dial Files
You can create speed-dial desktop shortcuts for PVX directory entries that you
dial frequently.
To create a shortcut on their desktop, and make a call, users can do the
following:
1. Click the Directory button on the main PVX page or on the Toolbar.
2. Click and drag any directory entry onto their desktop.
A new speed-dial icon will appear on the desktop. The filename will
correspond to the directory entry and will be appended with an extension
of .plcm.
3. To make a call to the entry on the desktop, either double-click the icon or
right-click the icon and select Call from the menu.

Release Notes
Polycom PVX Version 8.0.2
18 3725-22754-006/A
You can also manually create speed-dial files as text files with a .plcm
extension. To do so, use this format:
NAME=<Name Field>
SPEED=<Speed Field>
NUMBER1=<IP Address Field; can also be a DNS name>
NUMBER2=<not used; leave blank>
EXT=<H.323 Extension (E.164) Field>
SIP=<SIP Address Field>
ISDN=<ISDN Number Field>
This is a sample file named AnyUser.plcm.
NAME=AnyUser
SPEED=512
NUMBER1=100.100.100.100
NUMBER2=
EXT=
SIP=
ISDN=
When creating the speed-dial files:
•The speed must equal one of the call speeds listed in the directory's Call
Rate list. These speeds can be configured by going to the Network >
Bandwidth page and clicking the Call Speeds button.
•If you enter both a SIP and a H.323 number, PVX will dial the call using
the H.323 number. If you want to place a SIP call, do not enter an H.323
number in the speed-dial file.
•Unused fields should remain blank.

Release Notes
Polycom PVX Version 8.0.2
19
Feature Limitations
The following types of feature limitations are described in this section:
•Audio Issues
•Calling Issues
•Microsoft Windows Issues
•NAT/Firewall Traversal
•Network Issues
•Session Initiation Protocol (SIP) Issues
•User Interface
•ViaVideo and ViaVideo II Hardware Issues
•Video Issues
•VideoMail Issues
•Webcam Hardware Issues
Audio Issues
•When you upgrade from 6.0.2 to 8.0.2, the Echo Cancellation setting will
change from Off to Internal. Internal is the default setting for 8.0.2 and is
roughly equivalent to the Off setting in 6.0.2.
If you experience lip-sync and CPU usage problems when using PVX with a new
Logitech camera (such as the QuickCam Fusion and the QuickCam Pro 5000),
check if the camera has built-in AEC. If it does, disable AEC using the camera's
configuration software. You may also want to disable all other Logitech features,
such as face tracking. For more information, refer to the Selecting Audio and Video
Devices for Use with Polycom PVX document, available at
http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.
•For optimum audio performance, connect an external microphone to the
same device as the external speaker set. Once connected, be sure to select the
device in the PVX audio options under Setup > Audio > Audio Input Device.
•You may experience audio anomalies using USB audio with your ViaVideo
or ViaVideo II cameras. Polycom recommends using analog audio instead.
•To minimize the echo that might be returned to the person at the far site, do
the following:
—Verify that Automatic Gain Control is enabled on the Setup > Audio
page.
—Reduce the volume of the local speakers.
—Separate the microphone and speakers as far as possible.
•You may notice loss of far-site audio when you speak at the same time as the
far site when using a ViaVideo or ViaVideo II camera.
•Many Bluetooth® headsets only support telephone quality audio and
degrade the wideband audio feature in PVX. Consider the frequency
response and convenience tradeoff when using a Bluetooth headset.

Release Notes
Polycom PVX Version 8.0.2
20 3725-22754-006/A
•You may notice an increase or decrease of the system’s audio volume level
when starting the Polycom PVX application.
•When using a headset with the ViaVideo or ViaVideo II cameras, connect
the headset to the camera via a 2.5 mm stereo jack to the 3.5 mm stereo
plug adaptor. While many cell phone headsets are compatible for use with
ViaVideo cameras, those that support an audio range up to 7 kHz are
recommended.
•While PVX supports audio algorithms up to Siren 14, audio algorithms up
to G.722 only are supported in calls using a ViaVideo or ViaVideo II
camera. This is a limitation of the camera.
•If a ViaVideo or ViaVideo II camera's audio cable is connected to a
microphone jack and the playback volume is too loud, check to make sure
that there is no microphone level adjustment enabled. This may be labeled
Microphone Boost on some audio devices.
Calling Issues
•Before troubleshooting calling issues, check first to ensure that the latest
firmware versions and device drivers are downloaded onto all peripherals
such as routers, webcams, etc., that are connected to the PVX system.
Often, simply updating these items with the latest drivers or firmware will
correct the problem.
•If you switch to a different camera while recording VideoMail, the system
begins recording a new VideoMail instead of continuing to record the
existing VideoMail.
•System names that contain the ampersand character (&) may not be
displayed correctly on the System Information page. In addition, system
names that contain the ampersand character (&) cannot be added to the
Global Management System™ using the Global Management System web
interface.
•In a call between two PVX systems, if you enable VGA People and then
disable it, the transmit people frame rate drops to 15 fps. The frame rate
returns to 30 fps after you restart PVX.
•On a PVX set to use the “Other Applications” performance setting,
sending content in an H.323 768 kbps call uses 85% of the system
resources.
•In a 64 kbps call between PVX and Windows Messenger, the receive
bandwidth on the PVX is much higher than 64 kbps. This is a known
characteristic of Windows Messenger.
•After you restart a Japanese system, you must click the Change Password
button twice on the Setup > Locks page the first time you try to open the
Change Password dialog box.
•In a 768 kbps video switching conference with H.263 video, a PVX system
using a webcam may connect in secondary mode (audio only).
•Although PVX supports both encrypted call mode and H.239, some
Network Address Translator (NAT)/firewall devices do not. If you