Refurbished High Definition Video Conferencing Systems - Lifesize, Polycom, Tandberg, Codian, Radvision, Repairs and Servicing
Video Conference Rooms for Rental |
VideoLinx Videolinx is a specialist used and end-of-line video conferencing equipment supplier.We sell refurbished, second hand, ex-demo and liquidated videoconference equipment, supplying market-leading brands at much less than the cost of new systems. We bring experience in the video conferencing market to organizations wanting high-end systems at entry-level prices. We purchase used and demo video conferencing equipment from quantity one to hundreds at a time. |
We are looking for the following items to purchase from quantity of one unit to one hundred units at a time.
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Lifesize
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Lifesize Express and Lifesize Express 200
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Lifesize Team
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Lifesize Team MP and Lifesize Team 200
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Lifesize Room and Lifesize Room 200
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Lifesize Networker
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Polycom, Tandberg, Radvision, Sony, Codian, and Others
We also purchase and sell units from all of the above companies.
Please call and we will be glad to discuss these products in detail with you.
If you would like advice, reassurance or just more information please contact us at salesvideo@videolinx.com.
A videoconference uses a set of interactive telecommunication technologies to allow two or more locations to interact using two-way video and audio transmissions simultaneously.
We offers the broadest range of solutions to enable all our clients to successfully connect and video-conference, no matter what the environment.
This includes almost any type of video conferencing device for video-conferencing including HD High-Definition video conferencing.
The core technology used in a video-conference system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/decoder).
Compression rates of up to 1:500 can be achieved. The resulting digital stream of 1's and 0's is subdivided into labelled packets, which are then transmitted through a digital network of some kind (usually ISDN or IP). The use of audio modems in the transmission line allow for the use of POTS, or the Plain Old Telephone System, in some low-speed applications, such as videotelephony, because they convert the digital pulses to/from analog waves in the audio spectrum range.
The other components required for a VTC system include:
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Video input : video camera or webcam
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Video output: computer monitor , television or projector
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Audio input: microphones
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Audio output: usually loudspeakers associated with the display device or telephone
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Data transfer: analog or digital telephone network, LAN or Internet
There are basically two kinds of VTC systems:
- Dedicated systems have all required components packaged into a single piece of equipment, usually a console with a high quality remote controlled video camera. These cameras can be controlled at a distance to pan left and right, tilt up and down, and zoom. They became known as PTZ cameras. The console contains all electrical interfaces, the control computer, and the software or hardware-based codec. Omnidirectional microphones are connected to the console, as well as a TV monitor with loudspeakers and/or a video projector. There are several types of dedicated VTC devices:
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Large group VTC are non-portable, large, more expensive devices used for large rooms and auditoriums.
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Small group VTC are non-portable or portable, smaller, less expensive devices used for small meeting rooms.
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Individual VTC are usually portable devices, meant for single users, have fixed cameras, microphones and loudspeakers integrated into the console.
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- Desktop systems are add-ons (hardware boards, usually) to normal PCs, transforming them into VTC devices. A range of different cameras and microphones can be used with the board, which contains the necessary codec and transmission interfaces. Most of the desktops systems work with the H.323 standard. Videoconferences carried out via dispersed PCs are also known as e-meetings.
Disclaimer:
VideoLinx disclaim all liability for any loss, damage, injury or expense however caused, arising from the use of or reliance upon, in any manner, the information provided throughout this web site and does not warrant the truth, accuracy or completeness of the information provided. The onus rest with the user to verify the accuracy of any information obtained via this web site.
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