ATM - Asynchronous Transfer Mode

[Derrick]

ATM is a high-speed Wide Area Network (WAN), connection-oriented, packet-switching data communications protocol that allows voice, data and video to be delivered across existing local and Wide Area Networks. ATM divides data into cells and can handle data traffic in bursts. It is asynchronous, in that the stream of cells from one particular user is not necessarily continuous.

Source: http://telkom.investoreports.com/telkom_ar_2010/admin/definitions/