Videotelephony descriptive names & terminology
Videophone calls (also: 'videocalls' and 'video chat')[17], differ from videoconferencing in that they expect to serve individuals, not groups. However that distinction has becoming increasingly blurred with technology improvements such as increased bandwidth and sophisticated software clients that can allow for multiple parties on a call. In general everyday usage the term videoconferencing is now frequently used instead of videocall for point-to-point calls between two units. Both videophone calls and videoconferencing are also now commonly referred to as a 'video link'.
Webcams are popular, relatively low cost devices which can provide live video and audio streams via personal computers, and can be used with many software clients for both video calls and videoconferencing.[18]
A videoconference system is generally higher cost than a videophone and deploys greater capabilities. A videoconference (also known as a videoteleconference) allows two or more locations to communicate via live, simultaneous two-way video and audio transmissions. This is often accomplished by the use of a multipoint control unit (a centralized distribution and call management system) or by a similar non-centralized multipoint capability embedded in each videoconferencing unit. Again, technology improvements have circumvented traditional definitions by allowing multiple party videoconferencing via web-based applications.[19][20] A separate webpage article is devoted to videoconferencing.
A telepresence system is a high-end videoconferencing system and service usually employed by enterprise-level corporate offices. Telepresence conference rooms use state-of-the art room designs, video cameras, displays, sound-systems and processors, coupled with high-to-very-high capacity bandwidth transmissions.
Typical uses of the various technologies described above include videocalling or videoconferencing on a one-to-one, one-to-many or many-to-many basis for personal, business, educational, deaf Video Relay Service and tele-medical, diagnostic and rehabilitative use or services. New services utilizing videocalling and videoconferencing, such as personal videocalls to inmates incarcerated in penitentiaries, and videoconferencing to resolve airline engineering issues at maintenance facilities, are being created or evolving on an on-going basis.
[edit] See also
List of webcams for use on personal computers
Robbins v. Lower Merion School District, U.S. legal action against a school board for privacy invasion
Video camera
Videoconferencing
Videophone
Videotelephony
[edit] References
1.^ Solomon Negash, Michael E. Whitman. Editors: Solomon Negash, Michael E. Whitman, Amy B. Woszczynski, Ken Hoganson, Herbert Mattord. Handbook of Distance Learning for Real-Time and Asynchronous Information Technology Education, Idea Group Inc (IGI), 2008, p. 17, ISBN 1599049643, ISBN 9781599049649. Note costing: "students had the option to install a webcam on their end (a basic webcam costs about $40.00) to view the class in session."
2.^ CoffeeCam
3.^ Spiegel CoffeeCam
4.^ "Happy Birthday Fogcam" by Anjuli Elais in Golden Gate XPress, September 30, 2004
5.^ "Plug pulled on live website seen by millions" by Oliver Burkeman in The Guardian, January 3, 2004
6.^ "Serial burglar caught on webcam" BBC News, February 16, 2005, retrieved January 3, 2006
7.^ Linux 2 6 26 – Linux Kernel Newbies
8.^ "Google exposes web surveillance cams" by Kevin Poulsen, The Register, January 8, 2005, retrieved September 5, 2006
9.^ Doug Stanglin (February 18, 2010). "School district accused of spying on kids via laptop webcams". USA Today.
http://content.usatoday.c...tops-to-spy-on-students/1 . Retrieved February 19, 2010.
10.^ "Initial LANrev System Findings", LMSD Redacted Forensic Analysis, L-3 Services – prepared for Ballard Spahr (LMSD's counsel), May 2010. Retrieved August 15, 2010.
11.^ Holmes, Kristin E. (August 31, 2010). "Lower Merion School District ordered to pay plaintiff's lawyer $260,000". Philadelphia Inquirer.
http://www.philly.com/inq...ff_s_lawyer__260_000.html . Retrieved September 20, 2010.
12.^ ".". Main Line Media News. September 18, 2010.
http://mainlinemedianews....c7cfdad3e059461146296.txt . Retrieved September 20, 2010.
13.^ Live radio studio webcams
14.^ Kevin Whitrick commits suicide while broadcasting video
15.^ Bell Laboratories RECORD (1969) A collection of several articles on the AT&T Picturephone (then about to be released) Bell Laboratories, Pg.134–153 & 160–187, Volume 47, No. 5, May/June 1969;
16.^ a b New Scientist. Telephones Come To Terms With Sign Language, New Scientist, 19 August 1989, Vol.123, Iss.No.1678, pp.31.
17.^ PC Magazine. Definition: Video Calling, PC Magazine website. Retrieved 19 August 2010,
18.^ Solomon Negash, Michael E. Whitman. Editors: Solomon Negash, Michael E. Whitman, Amy B. Woszczynski, Ken Hoganson, Herbert Mattord. Handbook of Distance Learning for Real-Time and Asynchronous Information Technology Education, Idea Group Inc (IGI), 2008, pg. 17, ISBN 1-59904-964-3, ISBN 978-1-59904-964-9. Note costing: "... students had the option to install a webcam on their end (a basic webcam costs about $40.00) to view the class in session."
19.^ Lawson, Stephen. Vidyo Packages Conferencing For Campuses, IDG News Service, February 16, 2010. Retrieved via Computerworld.com's website, February 18, 2010
20.^ Jackman, Elizabeth. New Video Conferencing System Streamlines Firefighter Training, Peoria Times, Peoria, AZ, February 19, 2010. Retrieved February 19, 2010;
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