Saturday, September 29, 2007

Video Conferencing - a innovative technology

Video conferencing uses telecommunications of audio and video to bring people at different sites together for a meeting. This can be as simple as a conversation between two people in private offices (point-to-point) or involve several sites (multi-point) with more than one person in large rooms at different sites. Besides the audio and visual transmission of people, video conferencing can be used to share documents, computer-displayed information, and whiteboards.

Basic Video conferencing Technology

Compressed video systems allow a larger audience to experience the benefits of high-quality video conferencing at a reasonable cost. A video conferencing system requires the audiovisual equipment, which includes a monitor, camera, microphone, and speaker, and a means of transmission.

Rather than an Internet-based connection, such as that used by webcams, which have to share bandwidth with other Internet data, a compressed video system on a dedicated bandwidth provides smooth audio and video.

The compressed videoconferencing may be transmitted via an ISDN (Integrated Services Digital Network) line or over IP (Internet Protocol) lines. It is an economical solution for high-quality videoconferencing.

The most significant distinction among videoconferencing systems is the method of transmission. Transmission is important because two systems cannot connect if they are using different transmission methods. Videoconferences can be transmitted over two protocols, H.320 - ISDN (phone) or H.323 - IP (Internet) lines. In the past, most videoconferences used ISDN lines; however, many people are now using IP connections due to cost savings. In order to connect two units using different transmission methods, a bridge must be used that will handle these mixed protocols. In an ISDN call, bandwidth is dedicated to only one videoconference, while in an IP call, bandwidth may be used to transmit for multiple uses. However, ISDN calls can be very costly since you may be making the call over a distance, in which case, long distance phone line charges apply, and ISDN lines take up 6 phone lines. Connections around the world average 384 kbps.

Megameeting a company dealing with web conferencing has taken this technology to a step further with new, 100% desktop, browser based web conferencing services and webinar software that does not require any special installation on your computer.

Through its variety of services, MegaMeeting provides full-featured and flexible web conferencing software, video chat server and webinar software. Participants can communicate by voice, instant messaging chat and see each other by video/videoconference. This is made possible by the powerful video chat server. With Professional and Enterprise versions of its web conferencing software, MegaMeeting includes multipoint, desktop video conferencing software that allows up to 16 individuals to be seen at the same time, and an unlimited number of additional web conferencing attendees to see those 16. Participants can talk and hear one another by using standard microphones and headsets thanks to Voice over Internet Protocol (VoIP). As an alternative, if you wish, you can choose to use free, integrated teleconferencing for the handling of audio in your webinars.

New standards and greater innovations are continuosly progressing in this field which has made video conferencing a cost effective means.

1 comment:

Mounika Raghavarapu said...

The video conferencing solutions are now high upgraded. Now most of video-conferencing ternd is shifted form hardware to software. The Software Video Conferencing is also became highly felxible and is now capable of connecting to the hardwrae based video conferencing solution thourgh the H.323 gateway. Through this option, the businesses are free to connect with both teh software video conferencing and hradware video conferencing as well.