Polycom ViaVideo User Manual

ViaVideo User’s Guide

November 2000 Edition

3151-10065-005A

Important Information

mechanical, for any purpose, without the express written permission of Polycom, Inc. Polycom, Inc. retains title to, and ownership of, all proprietary rights with respect to the software

contained within its products. The software is protected by United States copyright laws and international treaty provision.

Every effort has been made to ensure that the information in this manual is accurate. Polycom, Inc. is not responsible for printing or clerical errors. Information in this document is subject to change without notice.

Other Restrictions

You shall not allow any third party to decompile, disassemble, or otherwise reverse-engineer or attempt to reconstruct or discover any source code or underlying ideas or algorithms of the software by any means whatsoever.

Trademark Information

Polycom®, the Polycom logo design, ViewStationTM, and ViaVideoTM are either registered trademarks or trademarks of Polycom, Inc.

Microsoft Microsoft Corporation. Adobe Acrobat Reader Pentium

All other brand and product names are trademarks or registered trademarks of their respective companies.

, Windows®, NetMeeting®, and DirectX® are either registered trademarks or trademarks of

is a registered trademark of Intel Corporation.

is a trademark of Adobe Systems Incorporated.

Patent Information

The accompanying product is protected by one or more U.S. and foreign patents and patents pending held by Polycom, Inc.

Warranty

Polycom, Inc. warrants its products to be free of defects in materials and factory workmanship for a period of twelve (12) months from the date of purchase. This warranty does not apply to damage to products resulting from accident, misuse, service or modification by anyone other than a Polycom, Inc. authorized service facility/dealer. The warranty is limited to the original purchaser and is not transferable. Any liability of Polycom, Inc. or its suppliers with respect to the product or the performance thereof under any warranty, negligence, strict liability or other theory will be limited exclusively to product repair or replacement as provided above. Except for the foregoing, the product is provided “as is” without warranty of any kind including without limitation, any warranty of merchantability or fitness for a particular purpose. The entire risk of the quality and performance of the software programs contained in the system is with you.

Limitation of Remedies and Damages

Polycom, Inc., its agents, employees, suppliers, dealers and other authorized representatives shall not be responsible or liable with respect to the product or any other subject matter related thereto under any contract, negligence, strict liability or other theory for any indirect, incidental, or consequential damages, including, but not limited to loss of information, business, or profits.

The law of certain states or nations does not permit limitation or exclusion of implied warranties and consequential damages, so the above limitations, disclaimers, or exclusion may not apply to you. This warranty gives you special legal rights. You may also have other rights that vary by state and nation.

Important Safeguards

Read and understand the following instructions before using the system:

• Close supervision is necessary when the system is used by or near children. Do not leave unattended

• Only use electrical extension cords with a current rating at least equal to that of the system.

• Always disconnect the system from power before cleaning and servicing and when not in use.

• Do not spray liquids directly onto the system when cleaning. Always apply the liquid first to a static

• Do not immerse the system in any liquid or place any liquids on it.

• Do not disassemble this system (except as instructed in the manufacturer's instructions). To reduce the

• Keep ventilation openings free of any obstructions.

• Save these instructions.

Regulatory Notices

FCC Notice

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorientate or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer for help. Changes or modifications not expressly approved by Polycom could void the user's authority to operate

this equipment. If you experience trouble with this equipment, please contact your equipment provider for repair/warranty information. If your equipment is causing harm to the telephone network, the telephone company may request that you disconnect the equipment until the problem is resolved.

There are no user serviceable parts inside the ViaVideo or power supply.

while in use.

free cloth.

risk of shock and to maintain the warranty on the system, a qualified technician must perform service or repair work.

Underwriters’ Laboratories’ Statement

The system is intended to be powered only by the supplied power supply unit.

RADVision Statement

Contents

ViaVideo Quick Start

System Requirements and Installation............................................................. 1

Hardware Requirements ..................................................................... 1

Software Requirements....................................................................... 2

Installing Software ............................................................................... 2

Installing Hardware ............................................................................. 2

Starting ViaVideo ............................................................................................. 3

Turn on the Camera ............................................................................ 3

Initial Setup ......................................................................................... 4

Camera Calibration ............................................................................. 6

Placing a Call ................................................................................................... 6

Using Manual Dialing .......................................................................... 6

Using the Address Book or Speed Dialing .......................................... 9

On-Screen Remote Control................................................................. 11

Ending a Call.................................................................................................... 12

Answering Calls ............................................................................................... 12

Closing ViaVideo.............................................................................................. 13

Using ViaVideo

Calling Features ............................................................................................... 15

Using the Remote Control ................................................................... 16

Window Controls ................................................................................. 18

Sending Snapshots ............................................................................. 19

Address Book and Speed Dial ........................................................................ 21

Using the Address Book...................................................................... 21

Using Speed Dial ............................................................................................ 26

Controlling Audio and Video............................................................................. 27

Controlling Audio ................................................................................. 27

Muting Video ....................................................................................... 29

Collaboration and Application Sharing ............................................................ 31

Multiple IP Addresses ...................................................................................... 31

Picture in Picture (PIP) ........................................................... 18

Minimize Window ................................................................... 18

Information Screen Access .................................................... 18

Re-Size the ViaVideo Display ................................................ 19

Leaving a Callback Message ................................................. 20

Local and Global Address Book Entries................................. 23

Via the On-Screen Remote .................................................... 27

Via the Audio Screen ............................................................. 28

Contents

System Information and Diagnostics

Using the System Information Screens ............................................................ 33

Diagnostics....................................................................................................... 35

Network Statistics ................................................................................ 36

Advanced Statistics ............................................................................. 37

Call Status ........................................................................................... 38

Reset System ...................................................................................... 39

Camera Calibration ............................................................................. 40

Generate Tone .................................................................................... 41

Setup ................................................................................................................ 42

General................................................................................................ 43

Directory Services ............................................................................... 45

LAN and Internet ................................................................................. 46

Audio ................................................................................................... 48

Software .............................................................................................. 50

PC Software ........................................................................... 50

ViaVideo Software .................................................................. 50

H.323 Setup ........................................................................................ 51

H.323...................................................................................... 52

Gatekeeper............................................................................. 54

Dialing Speeds ....................................................................... 55

Quality of Service and Firewalls ............................................. 56

Audio Connection

PC with Speakers............................................................................................. 59

PC with Headphones ....................................................................................... 60

Headphones Only ............................................................................................ 61

Headset with Attached Microphone ................................................................. 62

Network Connection

Pick Your Connection Type .............................................................................. 63

Simple Connection - Just a Modem, Thanks....................................... 63

Router With NAT, No Firewall ............................................................. 64

Router With Firewall ........................................................................... 64

Router With Firewall, Using a DMZ ..................................................... 64

Through a Virtual Private Network ...................................................... 65

Configure Your Connection .............................................................................. 65

Simple Connection - Just a Modem, Thanks....................................... 65

Router With NAT, No Firewall ............................................................. 65

Router With Firewall ........................................................................... 66

Configure your ViaVideo for NAT ........................................... 66

Open and Assign Ports in the Firewall ................................... 67

ViaVideo User’s Guide vi www.polycom.com

What’s a Firewall?............................................................................................ 72

What’s a DMZ? ................................................................................................ 74

What’s a Network Address Translator?............................................................ 75

Troubleshooting

General Troubleshooting.................................................................................. 77

Audio Troubleshooting ..................................................................................... 78

Video Troubleshooting ..................................................................................... 80

Error Messages ............................................................................................... 82

Contents

Router With Firewall, Using a DMZ..................................................... 68

Configure Your ViaVideo for NAT .......................................... 69

Assign your ViaVideo to the DMZ .......................................... 69

Through a Virtual Private Network ...................................................... 70

Opening Ports ..................................................................................... 73

Port Number Assignation ....................................................... 73

Is it Safe? ............................................................................... 73

Installation Errors ................................................................................ 82

H.323 Errors........................................................................................ 82

Contents

ViaVideo User’s Guide viii www.polycom.com

ViaVideo Quick Start

This chapter explains how to get started with the Polycom® ViaVideo describes:

• System Requirements and Installation (page 1)

• Starting ViaVideo (page 3)

• Placing a Call (page 6)

• Ending a Call (page 12)

• Answering Calls (page 12)

• Closing ViaVideo (page 13).

desktop video communications system. The chapter

System Requirements and Installation

Hardware Requirements

These are the minimum system hardware requirements:

•USB port

• 350 MHz processor, Pentium

• 64 MB RAM

• 4 MB video memory

• 150 MB available hard disk space (might be considerably less depending on whether you have the required software already installed)

• SVGA monitor (800 x 600)

• 16-bit color or higher

• Desktop PC with headphones, headset, or external speakers required Laptop PC with headphones, headset, or internal speakers required

• Broadband IP network access (32 KB and above).

II compatible with MMX

Chapter 1 ViaVideo Quick Start

• If you are using a headset with microphone, it must have a single audio connection, like those used with cellular phones.

Software Requirements

Installing Software

To use ViaVideo, you must have one of the following versions of Microsoft

Windows® installed:

• Windows 98 version 1 or version 2

• Windows Millennium Edition

• Windows 2000.

As part of the installation process, ViaVideo also checks for the following required software. If the software is not present, ViaVideo installs it.

•DirectX

• Adobe Acrobat Reader

version 4

• Microsoft database support (ODBC)

• NetMeeting

3.01.

To install the ViaVideo software, insert the ViaVideo CD into your CD drive and click Install Software. Follow the instructions in the installation screens to complete the installation.

Note If your PC is not set up to autorun the CD, double-click

vvsetup.exe

to run the installation program.

Installing Hardware

Caution Be sure to install the ViaVideo software before you install the ViaVideo camera unit.

To install the ViaVideo camera unit, inser t the ViaVideo CD into your CD drive and click the Install Hardware link. You are guided through the installation procedures step by step.

Note For more information about audio port connections, see

“Audio Connection,” on page 59.

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Chapter 1 ViaVideo Quick Start

Starting ViaVideo

The ViaVideo application and camera unit work together to provide an unparalleled experience in conference room quality video communications on your desktop. The ViaVideo camera unit combines a camera and high-performance multi-media processor, which performs all audio encoding and decoding, and video encoding. This leaves the PC free to perform normal tasks while ViaVideo is running, even if you are in a call.

Turn on the Camera

To start ViaVideo:

1. Turn the camera unit on using the slider switch in the front of the unit.

If your camera is installed correctly, the status indicator light blinks green, indicating that the camera unit is ready to receive the software upload.

The switch on the front of the ViaVideo camera unit has three positions:

On: Turns the camera unit on.

Video Mute: Blocks the camera unit lens. This does not

mute the camera unit’s audio. For more

Chapter 1 ViaVideo Quick Start

information, see “Muting Video,” on page

29.

Off: Turns the camera unit off.

Because a substantial portion of the ViaVideo software is uploaded to the camera unit when you start the application, the camera unit should be turned on before you start the application.

2. Start the ViaVideo application by double-clicking the ViaVideo icon on your desktop.

Initial Setup

The first time the ViaVideo application star ts, it presents a series of user setup dialogs:

a. User Information Provide the following essential

information:

Name: The name you enter in this field is

displayed in your caller identification, as well as your listing in the address books of users registered with your Internet Locator Service (ILS) or Global Address Book (GAB) server.

E-Mail Address: This E-Mail address is displayed in your

caller identification information.

Country: Select your country. ViaVideo uses this

setting to display the correct product version.

b. Microphone Setup - Specify which type of microphone

setup you are using:

ViaVideo built-in microphone:

Select this setting if you are using headphones or your PC’s speakers (not a headset with attached microphone). This setting is the default, and activates the ViaVideo camera unit’s microphone (located on top of the camera unit). This microphone is directional (oriented towards the face of the camera unit), and sensitive enough to use where other manufacturers’ cameras might require a headset microphone.

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Chapter 1 ViaVideo Quick Start

Headset with microphone:

Select this setting only if you are using a headset with an attached microphone plugged into the audio out port in the back of the ViaVideo camera unit. This setting turns off the internal ViaVideo microphone.

Note: If you have an external microphone attached to the

microphone port in the back of your PC, ViaVideo ignores it and uses the ViaVideo camera unit’s internal microphone.

For more information about the different audio connections, see “Audio Connection,” on page 59.

c. Global Address Book Registration - Specify if you want to

If you are registering with a GAB server or ILS server, enter the server’s IP address in the field provided.

When you register with a GAB or ILS server, other registered users can see your user information displayed as a global listing in their address books, and can use that listing to place calls. Likewise, if you are registered with the same ILS server as other users, their listings are displayed in your address book as global listings.

For more information about the Global Address Book and ILS servers, see “Using the Address Book,” on page 21 and “Directory Services,” on page 45.

If you choose not to register with either Polycom’s GAB or another ILS server, you can still place calls manually, and save those addresses, both in the Speed Dial screen, and as local addresses in your address book. For more information, see “Placing a Call,” on page 6.

When you complete the ViaVideo setup procedures, the indicator light on the ViaVideo unit blinks green as the ViaVideo application loads instructions to the camera unit. Once this process is finished, ViaVideo presents the main screen, from which you can place and receive calls.

Chapter 1 ViaVideo Quick Start

3. As a final step, use the focus knob on top of the ViaVideo camera unit to get a clear image in the main screen’s near video window (displayed whenever you are not in a call). Turn the knob to the right to focus on objects further away from the lens, and to the left for closer objects.

Note If the ViaVideo application presents the main screen, but an

animation is displayed in the near video window, check to make sure that your camera unit is turned on, and that the power and USB cables are connected correctly. For more information, see “Troubleshooting,” on page 77.

Camera Calibration

After your ViaVideo camera unit has been turned on for 1/2 hour or more, ViaVideo presents the Camera Calibration screen in the application window so that you can calibrate the camera for low light settings. Once your camera has been calibrated, you will not need to calibrate again unless you move the camera unit to a new computer.

To calibrate your camera:

1. Slide the camera switch to the Video Mute position. ViaVideo performs the calibration immediately once the switch is in the Video Mute position.

2. ViaVideo notifies you when calibration is complete. This should take just a few moments.

3. Slide the camera switch back to the On position.

You can also calibrate your camera manually in the Camera Calibration screen (System Info>Diagnostics>Camera Calibration).

Placing a Call

This section describes how to dial a call:

• Using Manual Dialing

• Using the Address Book or Speed Dialing.

Using Manual Dialing

This section explains how to make a call by dialing the far site IP number manually.

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Chapter 1 ViaVideo Quick Start

Note Before you start the ViaVideo application, be sure your

camera unit is turned on.

1. Double-click the ViaVideo icon to launch the ViaVideo application.

The ViaVideo application’s main screen is displayed, with near video showing in the Place Call window.

On-screen help icon

Info icon

Window controls

Call status light

IP address

If the ViaVideo application presents the main screen, but an animation is displayed in the near video window, make sure that your camera unit is turned on and that the power and USB cables are connected correctly. For more troubleshooting information, see “Troubleshooting,” on page 77.

2. Click Place Call in the main screen. The manual calling screen is displayed, with local video in the video window.

3. The Speed icon shows the selected line speed.

To select a line speed, click Speed and select the speed you want to use from the choice bar that is displayed on the left. For better video quality, select a higher speed if you have the network bandwidth available to support the higher transfer rate.

Chapter 1 ViaVideo Quick Start

To conserve network bandwidth, select a lower speed.

For more information about choosing line speeds, see “Dialing Speeds,” on page 55.

4. Use your keyboard or the number buttons on the number pad to enter the IP number, and click Call.

5. While the call is connecting, ViaVideo shows the name and IP address of the party you are calling, and the calling speed. A call progress indicator is displayed on the lower left of the screen to indicate that the call is connecting. The progress indicator changes progressively to blue, yellow, orange, and green as your call completes.

Blue Ringing, attempting connection to far site

Yellow Far site reached, waiting for answer

Orange Negotiating data transfer

Green Connected

6. Once your call is connected, ViaVideo shows the far site video, and the on-screen remote is displayed to the right of your screen. For more information about how to use the on-screen remote, see “Using the Remote Control,” on page 16.

Note If the call does not go through, one of the following

messages is displayed:

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Chapter 1 ViaVideo Quick Start

Network Error The far site does not answer. There is

either a network error, or more likely, the far site is not activated.

Far Site Busy The far site is currently in a call.

Using the Address Book or Speed Dialing

This section explains how to make a call using the address book and speed dial features of ViaVideo.

Note Before you start the ViaVideo application, be sure your

camera unit is turned on.

1. Double-click the ViaVideo icon to launch the ViaVideo application.

The ViaVideo application’s main screen is displayed, with near video showing in the Place Call window.

On-screen help icon

Info icon

Window controls

Call status light

IP address

If the ViaVideo application presents the main screen, but an animation is displayed in the near video window, make sure that your camera unit is turned on, and that the power and USB cables

Chapter 1 ViaVideo Quick Start

are connected correctly. For more information, see “Troubleshooting,” on page 77.

2. Click Address Book or Speed Dial. This presents the Address Book screen.

Speed dial

New entry

Edit entry

Delete entry

entries

Call button

Directory services

IP Address

Line speed

Connection type

The speed dial screen is actually part of the address book. To access speed dial entries, click the top tab on the right of the Address Book screen.

To place a call from the address book:

a. Highlight an entry in the Address Book screen.

b. Click Call or double-click on the entry.

ViaVideo presents the calling screen.

For more information about the Address Book screen, see “Using the Address Book,” on page 21.

The Speed Dial screen shows the last twelve numbers you have dialed. To place a call using speed dial, you must first have made a call, either manually or using the address book, for the entr y to appear in the Speed Dial screen.

To place a call using speed dial:

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Chapter 1 ViaVideo Quick Start

a. To display the Speed Dial screen, click the tab for speed

dial entries on the right of the address book, or click Speed Dial from the ViaVideo main screen.

b. Double-click on the speed dial entry you want to call.

For more information about the Speed Dial screen, see “Using Speed Dial,” on page 26.

3. While the call is connecting, ViaVideo presents the name and IP address of the party you are calling and the calling speed. A call progress indicator is displayed on the lower left of the screen to indicate that the call is connecting. The progress indicator changes progressively to blue, yellow, orange, and green as your call completes.

Blue Ringing, attempting connection to far site

Yellow Far site reached, waiting for answer

Orange Negotiating data transfer

Green Connected

4. Once your call is connected, ViaVideo shows the far site video, and the on-screen remote is displayed to the right of your screen. For more information about how to use the on-screen remote, see “Using the Remote Control,” on page 16.

Note If the call does not go through, one of the following

messages is displayed:

Network Error The far site does not answer. There is

either a network error, or more likely, the far site is not activated.

Far Site Busy The far site is currently in a call.

On-Screen Remote Control

When you place a call, a virtual remote control is displayed to the right of the ViaVideo screen. The remote control performs a variety of calling functions.

Chapter 1 ViaVideo Quick Start

For more information, see “Using the Remote Control,” on page 16.

Hangs up call

To g g l e s l oc a l Picture-in-Picture

Far camera movement (ViaVideo-ViewStation calls only)

Snapshot

Note: The far camera controls (far camera movement and far camera zoom) are not implemented in this release. They will be implemented in a future release.

Ending a Call

To end a call, click Hang Up on the virtual remote control. ViaVideo disconnects immediately.

Answering Calls

ViaVideo is configured to ask if you want to receive an incoming call. When you receive an incoming call, ViaVideo activates a ring tone, and pops up a dialog box. This dialog shows the name of the far site and its IP address. You can then choose to receive the call or not.

Far camera zoom

Virtual keypad (allows for DTMF touchtone numbers)

Volume

Audio mute

Application sharing

To have ViaVideo answer incoming calls automatically, go to the

General Setup screen (System Info>Setup>General) and select Auto Answer. When auto answer is on, ViaVideo activates a ring

tone, and automatically connects with the far site.

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Chapter 1 ViaVideo Quick Start

Note To answer a call, the ViaVideo application must be running.

If the ViaVideo application window is minimized, you are still able to receive incoming calls as described above.

Closing ViaVideo

To close the ViaVideo application, click the X in the top right corner of the ViaVideo screen, or right-click on the top of the application window frame.

Note To turn off the ViaVideo camera unit, move the slider switch

on the face of the camera unit all the way to the right.

Chapter 1 ViaVideo Quick Start

ViaVideo User’s Guide 14 www.polycom.com

Using ViaVideo

This chapter explains how to use the following ViaVideo features:

• Calling Features (page 15)

• Address Book and Speed Dial (page 21)

• Controlling Audio and Video (page 27)

• Collaboration and Application Sharing (page 31)

• Multiple IP Addresses (page 31).

Calling Features

This section describes the following ViaVideo features that you can use during a call:

• Using the Remote Control (page 16)

• Window Controls (page 18)

• Sending Snapshots (page 19).

Chapter 2 Using ViaVideo

Using the Remote Control

When you place a call, a virtual remote control is displayed to the right of the ViaVideo screen. The remote control lets you perform a variety of calling functions.

Hangs up call

Toggles local Picture-in-Picture

Far camera movement (ViaVideo-ViewStation calls only)

Snapshot

Note: The far camera controls (far camera movement and far camera zoom) are not implemented in this release. They will be implemented in a future release.

Hang Up Terminates the current call. When you press this

PIP Activates the Picture-in-Picture (PIP) window.

Far Camera/Zoom The far camera controls are not supported in

Virtual Keypad Lets you use Dual Tone Multi Frequency (DTMF)

Far camera zoom

Virtual keypad (allows for DTMF touchtone numbers)

button, the call is terminated.

ViaVideo maintains the PIP setting between calls.

this version of ViaVideo. They will be supported in the next version of ViaVideo.

touchtones. DTMF touchtones can be used when you are making a call through an H.323 gatekeeper and you need to manually enter an extension number. See “H.323 Setup,” on page 51 for more information.

Vol ume

Audio mute

Application sharing

ViaVideo User’s Guide 16 www.polycom.com

Chapter 2 Using ViaVideo

Snapshot Sends a high-resolution still image, or snapshot,

to the far site during a call. This feature is designed for far sites that use the Annex D high-resolution (704 x 576) graphics standard. These are typically conference room video communications systems, such as Polycom ViewStations. Systems using lower resolution graphics transfer standards (for example, QCIF, NetMeeting) are not able to receive high resolution snapshots.

Volume Controls audio volume received from the far site.

For more information about controlling audio, see “Controlling Audio,” on page 27.

Audio Mute Mutes outgoing audio to the far site. When this

option is selected, the audio mute icon is displayed on the screen (the far site does not see the icon). ViaVideo maintains the audio mute setting between calls.

Chapter 2 Using ViaVideo

Window Controls

You can perform several window controls:

• Picture-in-Picture (PIP)

• Minimize Window

• Information Screen Access

• Re-Size the ViaVideo Display

Picture in Picture (PIP)

You can activate ViaVideo’s Picture in Picture (PIP) feature while in a call by clicking PIP on the on-screen remote control.

Minimize Window

You can minimize the ViaVideo application window by clicking the minimize icon in the top right corner of the ViaVideo application window. If you are not in a call, the window is minimized and you can answer incoming calls normally.

If you are in a call, you can still minimize the application window without losing full audio and video functionality. To do so, simply click the minimize icon in the top right of the ViaVideo application window while you are in a call.

The ViaVideo window is minimized, and the far site is displayed in a small window that is always on the top layer of your desktop. You can drag this window to a convenient location on your desktop.

Note If you click Mute on the on-screen remote before minimizing

the application, you can go ahead and play Quake while you’re in a conference call. As long as you keep a straight face, no one will know!

Information Screen Access

You can access ViaVideo information screens while in a call by clicking Info in the top left of the ViaVideo window. Far site video is displayed in a small window, which you can drag to a convenient location.

Information screen access during a call is useful if you want to access your address book, check audio transfer to the far site (System Info>Audio>Generate Tone), or see the call connection

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Chapter 2 Using ViaVideo

statistics (System Info>Diagnostics>Network Stats or System Info>Diagnostics>Advanced Stats).

To return to full-display mode, click Home in the bottom right of the information screen. Then click Place Call.

Re-Size the ViaVideo Display

You can make ViaVideo display in a smaller screen to give you more space on the desktop. Go to System Info>Setup>General and select Show small size at startup. The next time you start ViaVideo, the application is displayed in a half-size screen without any loss of image quality.

Sending Snapshots

You can send a snapshot to the far site while you are in a call. Snapshots are a way to transfer high-resolution still images to the far site.

To send a snapshot:

1. Position and focus the ViaVideo camera to ensure a good image. Use the PIP feature to see the near camera view.

2. Click Snap on the on-screen remote control. The far site participant can see the snapshot image you sent.

3. ViaVideo invokes your default browser, and shows the snapshot on your desktop.

When the far site sends you a snapshot, ViaVideo invokes your default browser, and shows the snapshot in the browser window. You can easily review the snapshots sent during a meeting by clicking Back and Forward on your browser.

To save a snapshot, right-click on the image and select Save As... to save the image. In this way, you can save all snapshots sent and received during a meeting.

Note The snapshot feature is designed for far sites that use the

Annex-D high-resolution (704 x 576) graphics standard. These are typically conference room video communications systems, such as Polycom ViewStations. Systems using lower resolution graphics transfer standards

Chapter 2 Using ViaVideo

(for example, QCIF, NetMeeting) are not able to receive high-resolution snapshots.

Leaving a Callback Message

You can also leave a message with other users if they have their unit on, but are not at their desk. Simply send a snapshot and end the call. The snapshot is displayed in a browser window at the far site, and is sure to grab their attention.

It helps if you leave your number so the far site can call you back.

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