Teleconferencing

Teleconference is the live exchange and mass articulation of information among persons and machines remote from one another but linked by a telecommunications system, usually over the phone line.

The telecommunications system may support the teleconference by providing one or more of the following audio, video, and/or data services by one or more means, such as telephone, telegraph, teletype, radio, and television.

Teleconferences are also referred to as teleseminars.

Internet Tele-conference
Internet telephony involves conducting a teleconference over the Internet or a Wide Area Network. One key technology in this area is Voice over Internet Protocol (VOIP). Popular software for personal use includes Skype, Google Talk, Windows Live Messenger and Yahoo Messenger. A List of commercial voice over IP network providers is available.