Tele /Video conferencing Webcast Internet telephony


  • To hold a conference via a telephone ornetworkconnection

A teleconference refers to live exchange of information among a group of business-related entities. The technology has enhanced presentations at business conferences and effectively linked commercial organizations spread over a vast geographical area. The mass articulation of communication and information is facilitated through versatile telecommunication systems.

Advantages of Teleconferencing

  • benefits of using teleconferencing
  • reaches a larger population
  • geographical barriers diminished
  • saves time and travel costs
  • convenient and efficient

Disadvantages of using teleconferencing

  • staffing necessary
  • learning time to adapt to technology
  • technology may be expensive
  • diminishes personal touch
  • hearing issues

Teleconferencing that is merged with use of video cameras is known as video conferencing

Video Conferencing

Video conferencing is a telecommunication technology which allows two or more people to interact with each other by a two-way audio video transmission.

Video conferencing is a powerful Information exchange tool, that facilitates a virtual visual meeting environment between two or more participants, located at different sites, by using computer networks to transmit and receive audio and video data

Video conferencing is a widely accepted mode of communication among business houses as well as other organizations. The mechanics of video conferencing is similar to a telephonic conference, except video communication allows a visual presentation. Each participant has a microphone, speakers, and a video camera mounted on the computer. As two or more people communicate with each other, their voices are carried over the network to the others, and images appear on the other participant's monitor

History of  Video Conferencing

  • 1964- a gadget known as the Picturephone was introduced at the World's Fair in New York.
  • In1970, AT&T introduced its commercial Picturephone service in Pittsburgh,
  • In1982, Compression Labs launched their first video conferencing system.
  • In1991, PictureTel, in collaboration with IBM, introduced a cost-efficient black and white video conferencing system. The first PC-based conferencing system
  • 1992marked the launch of AT&T Videophone
  • 1993-Macintosh launched its own video conferencing system meant for the PC, called CU-SeeMe v0.1
  • In1994, it was further upgraded to make it compatible to Windows
  • In1996  the launch of Microsoft NetMeeting v20.0b2

Advantages of Video Conferencing

No Time Constraint
Video conferencing can be conducted at any time of the day. Time differences between countries do not matter when people use this method of communication because they do not actually need to travel to attend meetings.

Saves Time and Money
Transaction of any business requires frequent travel, to facilitate its growth and diversification. That translates to travel and associated costs like hotel accommodation and food expenses. A video conference will keep executives in the office, rather than sending them halfway across the country for conducting business. As one can conduct transactions without traveling, it also reduces the time spent in doing so.

Sharing Information is Easy
Video conferencing enables improvisation of operations and services of remote outlets. As it can also be used to transmit files and documents, it is possible to provide real-time information, that can help in solving problems. Also, decisions can be made in the least possible time. The ability to share, coordinate and evaluate digital data from anywhere in the world allows people to conduct simultaneous communication and collaboration on time-sensitive projects.

Facilitates Long-distance Programs
Educational institutions, mainly long-distance education programs and instructional courses, have reaped enormous benefits of video conferencing. Professionals and students are able to access lectures, study material, group discussions, and even one-to-one talk with the instructor. Video conferencing has taken education into far-flung corners of the world.

Disadvantages of Video Conferencing

Technical Problems
The foremost disadvantage of video conferencing are the technical difficulties associated with smooth transmissions that could result from software, hardware or network failure. Remote connections are sometimes known to be hampered by environmental changes. On some occasions, the absence of technical support personnel creates difficulty for participants who are unfamiliar with the videoconferencing technological concepts.

Lack of Personal Interaction
Another major drawback is the lack of personal interaction, that sets the tone for many business meetings in highly cultural societies. A handshake and an eye contact are essential aspects of many business meetings. Some meetings require a personal touch to be successful.

High Cost of Setup
Setting up video conferencing in an office can be a bit expensive for small-sized companies. Simple features can fit into the budget, but if advanced features are required, then a substantial amount of expenditure must be done.

Internet telephony

Internet telephonyinvolves conducting a teleconference over theInternetor aWide Area Network. One key technology in this area isVoice over Internet Protocol(VOIP). Popular software for personal use includesSkype,Google Talk,Windows Live MessengerandYahoo! Messenger.

  • Voice over IPcommunication protocols
  • Public Switched Telephone Network
  • Skype is actually a Voice over IP (VoIP - Voice over Internet Protocol) service provider.

Web conferencing /Webinar


  • Webinars are web-based seminars
  • It is a presentation, lecture, workshop or seminar that is transmitted over theWeb.
  • Web conferencing first appeared in the late 1990s with products such as PlaceWare,          Microsoft's NetMeeting and IBM's Sametime.



  • To send live audio or video to the user from a Web site. It is the Internet counterpart to traditional radio and TV broadcasting.
  • To send selected Web-based information (text, graphics, audio, video, etc.) to Internet users based on individual requirements

Live Webcast

  • Live Webcast: the transmission of live or pre-recorded audio or video to personal computers that are connected to the Internet.
  •  A user who clicks a link to a live clip joins the live event in progress. Because the event is happening in real time, fast-forward, rewind, and pause capabilities are not available.
  • Live Web casts are most suitable for high demand live presentations to large geographically dispersed audiences. Participants can attend these virtual presentations from their desktop by visiting a web site.
  • Interaction between instructor and learners occurs in real-time. Participants can use a chat window to type in questions to the presenter during the session.
  • Web casts simulate the look and feel of a live event and can even be recorded for later viewing for those who missed the original web cast.
  • This method is also less expensive than satellite broadcasting.

SET (Maharashtra) Examination 16th April 2017

1 Commencement of online Application 27 Dec 2016
2 Last date for Applying Online 10 Jan 2017
3 Availability of Admit Card on website 06 Apr 2017
4 Date of Examination 16 Apr 2017


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