- noun a design of communication system in which a path from sender to receiver is created when required rather than using a permanent, fixed line
- The temporary linking of two communications terminals in order to establish a communications channel. This circuit must be established before communication can occur, and remains in exclusive use by these terminals until the connection is terminated. Used, for instance, by telephone companies to enable dial-up voice conversations. Such a connection is made at a switching center.
- The temporary linking of two data terminals, in a manner that the connection remains in exclusive use by these terminals until the connection is terminated.
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