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What is videoconferencing?
Video conferencing enables people at different locations to: • see and hear each other• see documents and slides• share access to computer
applications (sometimes).
Benefits of ICT: Collaborating - Videoconferencing
• to give access to resources for special-needs users• to share scarce resources, especially for scattered or
rural populations• to deliver information on rapidly changing topics• to provide a virtual experience when the real
experience is not possible• for collaboration, information searching, problem
solving, and decision making.
Why Might you Use Videoconferencing?
Benefits of ICT: Collaborating - Videoconferencing
• Establishes a visual connection among participants
Conversation and body language can enhance communication.
• Connection with external resources
Remote experts can provide feedback and expertise.
• Document sharing encourages collaboration and feedback
Advantages of Videoconferencing
Benefits of ICT: Collaborating - Videoconferencing
• The initial cost of the equipment and leasing the lines in order to transmit conferences can be expensive.
• The availability of many different types of
videoconferencing equipment which can lead to communication breakdown due to technical incompatibility.
Shortcomings of Videoconferencing
Benefits of ICT: Collaborating - Videoconferencing
The three main types of videoconferencing systems are:
• Room System• Rollabout System• Desktop System
Determine Your NeedsWhich Videoconferencing System?
Benefits of ICT: Collaborating - Videoconferencing
A room system offers the highest quality available, but at the highest cost.
Room System
Benefits of ICT: Collaborating - Videoconferencing
A room system offers the highest quality available, but at the highest cost • Cameras and microphones are mounted with a
technician controlling the video and the audio.
• Expensive – can be anything from around £20,000 to £100,000.
Room System
Benefits of ICT: Collaborating - Videoconferencing
The rollabout is a mid/high range system for individuals and small groups.
Rollabout System
Benefits of ICT: Collaborating - Videoconferencing
• The rollabout has the equipment on a cart with wheels that can be rolled from room to room.
• The quality of the rollabout system is less than the quality achievable with room systems.
• It does give good quality videoconferencing and flexibility.
• Fairly expensive – can be anything from around £5,000 to £20,000.
Rollabout System
Benefits of ICT: Collaborating - Videoconferencing
• Can produce relatively poor quality video and audio, which is substandard for some applications where quality and reliability are important.
• Low cost and easy availability make this the videoconference option with the greatest potential for universal deployment, especially in rural locations.
Desktop System
Benefits of ICT: Collaborating - Videoconferencing
Many centres have public rooms that have videoconferencing equipment and is willing to rent the room and equipment to you for a specified time to help you arrange your videoconference. Public rooms are available around the country.
Videoconferencing Suites
Benefits of ICT: Collaborating - Videoconferencing
Price will be a major factor when you begin to look for cameras
Buy the camera with the greatest pixel count you can afford. This will give you the best possible picture quality
Mini cameras (web cams) designed to fit on top or beside your monitor. This way, as you’re working on the computer, you’ll be looking into the camera as well. Image quality is not as good as the larger cameras but this is improving with every new product release.
Desktop Videoconferencing Hardware- Camera
Benefits of ICT: Collaborating - Videoconferencing
As with any computer use, nothing runs without software and videoconferencing is no different.
• The software controls the videoconferencing session. It takes the video image, sound and any other computer operation and sends the signal over the carrier to the other conference site
• Some software will offer the bare essentials, while others have extra features
• Which one you choose will depend greatly on your particular needs and budget.
Desktop Videoconferencing -Software
Benefits of ICT: Collaborating - Videoconferencing
CU-SeeMe
This is the most popular, full-featured software for seeing, hearing, and sharing.
Features
You can view up to 12 video images simultaneously.• The Phone Book has graphical Contact Cards to save, add, and edit
contact information for people and conferences • chat for multi-user collaboration during conferences • caller ID for screening incoming calls• controls to restrict incoming and outgoing calls.
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Examples of Videoconferencing Software
Benefits of ICT: Collaborating - Videoconferencing
Netmeeting
With NetMeeting for Windows 95 and Windows NT you can:
• communicate with both audio and video • collaborate on virtually any Windows-based
application • exchange graphics on an electronic
whiteboard• transfer files • use the text-based chat program.
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Videoconferencing Software
Benefits of ICT: Collaborating - Videoconferencing
Videoconferencing can give great benefits to users. In this unit, we will look at case studies of two types of videoconferencing systems in use by community practitioners.
• The first looks at the use of a rollabout system used to deliver learning by the Royal Hospital for Sick Children in Glasgow.
• The second considers ways that community practitioners could use desktop videoconferencing.
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Summary
Benefits of ICT: Collaborating - Videoconferencing