Circuit-switched communication is a method where a dedicated communication path is established between two parties for the duration of their conversation. This means that once the connection is made, the entire bandwidth of the circuit is reserved exclusively for that call, allowing for consistent and reliable communication. This method is commonly used in traditional telephone networks. In circuit-switched networks, the connection remains active until one party hangs up, which can lead to inefficient use of resources if the line is idle. This contrasts with packet-switched networks, where data is broken into packets and sent over shared paths, allowing for more efficient use of bandwidth.