Teleconference

In telecommunication, teleconference is the live exchange and mass articulation of information among persons and machines remote from one another but linked by a telecommunications system.

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

Internet Tele-conference

Internet telephony involves conducting a teleconference over the 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.