2009年3月16日星期一

Where Can You Perform Video Calls?

Where Can You Perform Video Calls?
You can carry out video calls at home or anywhere a high-speed Internet connection, some
privacy, and the proper hardware and software are available. Since the camera and headset
are small, all you need is a computer and software. For this discussion, we assume that a
computer is available.The video call software is the core of personal videoconferencing. It
enables you and the other party to see as well as hear one another.
You need to consider two things when selecting a solution for your personal videocon-
ferencing needs:

Where will you use it?

Are there special con?guration needs?
Introduction to Video Calls ? Chapter 1
9
As a business traveler, I often ?nd that during my down time I would like to participate
in video calls with my family and friends.To do this I must have a solution that will work
wherever I am. I could be in a hotel, an airport, a friend's home, or an Internet café. I need
a solution that will work no matter where I am and no matter whose computer I am using.
So where can the business traveler go to do personal videoconferencing? There are lots of
options. Hotels are the best because they have high-speed connections for all the hotel
guests. I stay at Marriott and Courtyard by Marriott because they have consistent high-
speed connections at a reasonable price, or free in many cases, now that hotels are using
high-speed Internet access to attract customers.
Where else can you do personal videoconferencing when you're on the road? At any
airport that has a "laptop lane" or other road warrior laptop hookup service. Many airports
have WiFi access available in the general waiting area for a daily use fee, but you will not
have much privacy. Some airlines actually have high-speed access on the planes on interna-
tional ?ights, so you could even pass the time having a video call with your family, friends,
or colleagues at 30,000 feet.
As I mentioned, Internet cafés have computers and high-speed connections, and some I
have visited even have Webcams. However, the connection speeds are usually not that good,
with everyone else using the other computers doing gaming and such, and it is not very
private.You will have to ask the business for permission to install the video call software you
use on their system.
If you are a frequent ?yer and belong to one of the elite ?yers clubs such as Delta's
Crown Room, United's Red Carpet Room, and others, they are now starting to offer wire-
less access for a fee so that you can work while waiting for a ?ight. Some airlines are the
latest to offer wireless broadband for international ?ights. Boeing is planning a service called
Connexion that will start to show up on domestic ?ights in the future.This brings up an
interesting point about privacy, not only for you but for others sitting next or around you.
You will probably want privacy when you make a video call, but what about the person sit-
ting next to you? They might not want to be bothered by your video conversation after
they get over the novelty of it; they might want to rest or sleep, so you must practice proper
etiquette and not invade their privacy.You can ?nd more on Boeing's Connexion service at
the following Web site: www.connexionbyboeing.com/
Starbucks and many other WiFi "hotspots" also have high-speed wireless connections
that could allow you to do a video call, but these places are often crowded, noisy, and not
private. Many hotel lobbies have wireless access and can provide a comfortable and some-
what private place to make a video call.




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What Is a Video Call?

What Is a Video Call?
This book provides the information you need to understand what a video call is, the solu-
tions that are available, the hardware and software required, and what high-speed Internet
connection will work best for you so that you can set up a videoconferencing system easily
and quickly and start using it with your children, family, and friends.
Video call technology can have many names: video calls, personal videoconferencing,
videoconferencing, video messaging, instant messaging, video phone, video telephone, and
video chat.The name any one technology goes by might be due to a vendor's product and
its marketing, but it should be understood that all the technologies are basically the same
and essentially interchangeable; only the features vary.A video call is the total experience
6
Chapter 1 ? Introduction to Video Calls
that two people can have while communicating with one another using audio and a
moving video image, and possibly additional features.
Understanding the Basics…
What Is a Video Call?
A video call is a call between two people that includes both audio and a moving
video image; it can take place between two computers or dedicated video telephone
equipment.
Most of us have used e-mail and even IM solutions such as Skype, iChat AV, MSN,AIM,
YIM, or others.These IM solutions let you chat between two or more people, voice chat or
talk between two or more people, and now even do a video call between two people. Some
solutions are better than others, however; this book will help you select a solution that will
allow you to have a good video call experience the very ?rst time you use it.
A video call can utilize one or more of the following devices:

A personal computer (PC), either Windows or Apple

A Webcam

A video telephone

A dedicated videoconferencing device

A Pocket PC, Palmtop, or other handheld device

Cell phones with picture and/or video capability

Digital cameras

Video recording devices
Imagine the ability to talk to someone far away and actually see the person you are
talking with using live video. Picture yourself being able to play an Internet game while
participating in a video call that lets you not only see the individual you're playing with but
also send funny comments via IM while waiting for your turn. Or imagine being able to
send family members photos or, even better, video clips of the latest family outing.
The experience of communicating with family and friends when you are busy or living
in a different city is becoming a more robust experience with the technologies and solu-
Introduction to Video Calls ? Chapter 1
7
tions available today. As young as the Internet is, imagine the improvements that await us in
the future!
The most important component of a video call is the video. Video is the main improve-
ment over a conventional telephone call. With the addition of video, seeing the person you
are speaking to enhances the experience and expands the possibilities.You can actually show
the person on the other end what you can only verbalize during a telephone call.
According to www.whatis.com, the term videoconferencing is de?ned as,"A live connec-
tion between people in separate locations for the purpose of communication, usually
involving audio and often text as well as video.At its simplest, videoconferencing provides
transmission of static images and text between two locations.At its most sophisticated, it
provides transmission of full-motion video images and high-quality audio between multiple
locations."
This book not only covers solutions that you can use on your computer but also dis-
cusses solutions that are stand-alone video telephones and solutions that use your television
set as a part of the video call. We also cover forthcoming solutions, such as the ability to
perform a video call on your cell phone.
With the Internet today, along with inexpensive high-speed or broadband Internet, as it
is called for home use, video calls are no longer something reserved for the business or cor-
porate world.The ?rst successful videoconferencing solution for a personal computer was
Microsoft NetMeeting. IM solutions such as those from Skype,Apple, Microsoft,Yahoo, and
AOL added improvements including video, making video calls more mainstream then ever
before. In fact, Microsoft and Logitech report they have already had over 3 billion Webcam
session chats with MSN Messenger (www.microsoft.com/presspass/press/2005/mar05/03-
09logitechpr.mspx). Remember, MSN Messenger is only one of over40 video call solutions.
To make a video call, you need a broadband Internet connection (high-speed Internet).
The technical details of how to choose a high-speed Internet connection are discussed in
Chapter 3, but it should be understood that in a video call, the speed of the Internet con-
nection becomes very important. Dialup access will not provide you a very good solution,
so do not even bother trying.Although there is one solution that relies on a regular tele-
phone line, video needs more bandwidth than dialup can provide.
Do you think video calls are too complicated? While reading this, are you thinking that
you or your child, friends, or family do not know how to use a computer very well, let
alone make a video call? For the less computer savvy user there are video call solutions that
do not use a computer, such as dedicated video telephone devices; some devices use only
your television, a device set on top of your television connected to your broadband Internet
connection, and a remote to control the video call. We delve into dedicated video telephone
devices in Chapter 5.
8
Chapter 1 ? Introduction to Video Calls
If you are already computer literate or willing to use a computer, there are many more
things you can do with a Windows or Apple computer equipped for video calls.You can do
IM, send photos, help your children with their homework, talk to your parents, play games,
send video and pictures to your children, friends, or family—and more important, they can
send these things to you!
Imagine coming home from a day at work and having your son send you a video clip
from his football practice, or your daughter from her gymnastics class. Imagine being a busi-
ness traveler and while in your hotel room, be able to see and speak to family and friends
while you are traveling. Imagine if you are a divorced parent the potential bene?ts of a
video call with your children who live in another city or state. Using video call technology,
I read my daughter bedtime stories when she was four years old, and she was 1400 miles
away! Now she is seven and reads stories to me. Even though we are not home together, we
can participate in our children's lives or communicate with family and friends more than
ever before, thanks to video calls.
A recent study by HarrisInteractive.com found that roughly a third (30 percent) of U.S.
adults live in a different state than their mothers.Although 66 percent of these adults speak
to their mothers at least once a week on the phone, 84 percent would prefer to talk face-to-
face with their family and friends rather than use the phone. Unfortunately, 87 percent of
these adults also report that they see their moms only once a month or less
(www.motorola.com/mediacenter/news/detail/0,,6088_6049_23,00.html). With your com-
puter and a Webcam, video telephone, cell phone, and other upcoming technologies, a
video call with your children, family, and friends will improve your communication experi-
ence more then can be achieved with a telephone call alone.




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Web Videoconferencing

Web Videoconferencing
Web videoconferencing is speci?cally designed to transmit a video call inside a Web page or
classroom-type environment.You might have seen Web videoconferencing employed in a
Web training seminar, or Webinar as they are called, where you saw the presenter's video
image streamed to your Web browser.You might have been sending your video image as
well, but most likely not, because Webinars tend to comprise one-way video to you.
Solutions such as WebEx and Microsoft Live Communication Server are two Web confer-
encing solutions.These solutions are also designed to record a session and post it to a Web
site for on-demand viewing any time via a video stream to your browser. We will discuss
these solutions in more detail in Chapter 8.




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Business Videoconferencing


Business Videoconferencing
Business videoconferencing can involve the same solutions as personal videoconferencing but
with the addition of several features:

The capability to include multiple people on the video call

Collaboration features

Document-sharing capabilities

Enhanced presentation capabilities
Introduction to Video Calls ? Chapter 1
5

Whiteboard capabilities

Additional bandwidth requirements

Additional costs
Business videoconferencing is speci?cally designed to meet the needs of business meet-
ings and group collaboration, not our personal needs to communicate with family and
friends. Business videoconferencing solutions are more expensive and as a general rule need
more equipment at the of?ce location as well as more network and/or Internet bandwidth
than we have available to us at home.
Business videoconferencing solutions do have single-user solutions for mobile users or
telecommuters, such as solutions from PolyCom, Sony, and others.These solutions are
designed to communicate with higher-end and more expensive solutions that you would
see in your business conference room at work. We will discuss these solutions in more detail
in Chapter 8.



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Types of Videoconferencing

Types of Videoconferencing
Before we help you understand what you need to make video calls, let's discuss the various
?avors of videoconferencing and outline the topics we focus on in this book so that you
have a clear understanding of the differences among the various videoconferencing solu-
tions. We divide these videoconferencing types into three categories:

Personal videoconferencing

Business videoconferencing

Web videoconferencing
These solutions can be software that you use with your computer, stand-alone hard-
ware, or combined software and hardware solutions.They all have one thing in common:
they allow you to make a video call of some sort using various features.
Personal Videoconferencing
This book focuses primarily on personal videoconferencing solutions, or what we call video calls.
We use the term personal because these calls are usually between only two people—you and
the person you are communicating with.A video call, at minimum, is simply the communi-
cation between two or more people who have both audio and a moving video image using
a computer, dedicated video telephone, or both. It may also include additional features such
as instant messaging (IM) and ?le transfers (FT), commonly found in many IM tools such as
Skype, iChat AV, MSN Messenger (MSN),Yahoo Instant Messenger (YIM), and AOL
Instant Messenger (AIM).Though we will discuss business videoconferencing and Web
videoconferencing so that you can understand the basic differences among them, we focus
on personal videoconferencing solutions, from here on referred to simply as video calls.This
will help simplify what we are addressing in this book: the ability of making video calls
between two people to better communicate and enhance the communication experience.




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