Frequently Asked Questions
We have compiled some of the most frequently asked questions about videoconferencing and provided the answers below. If you have a question that is not found here, or within our Learn section, please feel free to contact PicturePhone so that we may assist you. Email a question.
Q: What is videoconferencing?
A: Videoconferencing is an interactive tool that incorporates audio, video, and computing, and communications technologies to allow people in different locations to electronically collaborate face-to-face, in real time, and share all types of information including data, documents, sound and picture. Videoconferencing works much like instant messaging or online chatting. You're simply adding digital video to the connection in order to see the person/people on the other end.
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Q: How does videoconferencing work?
A: Videoconferencing systems compress video and audio signals so they can be transmitted over existing telecommunications networks. The engine that compresses the video and audio signal is called a codec (coder/decoder).
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Q: Can videoconferencing systems connect to more than one site simultaneously?
A: Videoconferencing now allows three or more sites to connect at once through the use of a video bridge called a Multi-Point Control Unit (MCU). Although this type of equipment can be costly, certain applications, such as distance learning to multiple classrooms, can be more effective in a multi-point configuration. These MCUs usually have the capability to perform streaming (web-casting) as well.
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Q: What equipment will I need to conduct a videoconference?
A: Equipment requirements include a codec, camera, speaker, microphone, display device (monitor), compression software, and telecommunication network. Most local telephone carriers offer digital networks capable of supporting videoconferencing. See system components for more information.
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Q: How easy is videoconferencing to use?
A: Today's systems are extremely easy to operate. Gone are the days when a technician was needed to run the videoconference. Now, you can use handheld "controllers" similar to the ones you use for your TV to operate the videoconferencing system. Little or no training is required. Just think of videoconferencing like an interactive television: Your friends/colleagues can see and hear you and you can see and hear them.
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Q: What is the cost of a videoconferencing system?
A: Videoconferencing systems range from about $300 for PC/desktop systems to $50,000 for large built-in systems. Costs will vary depending on the size and capabilities of the equipment, as well as the addition of any auxiliary equipment. See the different types of systems and their associated costs for a better idea of what you will have to spend for the appropriate videoconferencing system.
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Q: What should I wear for a videoconference?
A: Pastel colored shirts and blouses tend to look best. Avoid wearing bright colors, such as reds because they tend to "bleed" on-screen. Also avoid patterns and all-light (white) or all-dark clothing. The camera's brightness control will automatically adjust. So, for instance, all-dark-colored clothing will cause the camera lens to open more, making your face look washed-out.
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Q: What are the benefits of videoconferencing?
A: Videoconferencing can offer a wide variety of benefits to both the individual user, as well as business organizations. Reducing travel expenses, including airfare, hotels, car rentals and meals, is certainly a major benefit, but there are other reason to use videoconferencing too, such as increase productivity and faster communication with larger groups of people. For details, please see the benefits of videoconferencing.
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Q: Is videoconferencing realistic?
A: Videoconferencing in the last few years has become very realistic. The jerky movement of early videoconferencing systems is a thing of the past. Also, the audio has greatly improved so that echoing is practically non-existent. A videoconference session today is almost like being there. Keep in mind that the the type of interface you are using and the frames per second (fps) rate of your camera can influence how realistic a videoconference appears. To avoid choppy images, you should use a camera that will deliver images at a minimum of 30 frames per second.
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Q: What is the best transmission technology to use?
A: For most business users and home offices, a LAN/WAN IP network would be the preferred conduit. LAN/WANs use an IP approach in which the network is shared by data, audio and video streams of IP packets. *Note: ADSL and cable modems are useable; but may not provide sufficent bandwidth to accomodate full motion video and/or HD video in both directions. A fractional T, Fractional or full ethernet and/or symetric DSL circuit with a publically routable IP and at least 1.2Mb of bandwidth would be the minimum we would recommend for a small business office. A larger network "pipe" such as a 10/100 connection would be necessary to effectively handle multipoint HD video calls and other network services concurrently. Back to top |