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 technology is commonly used in traditional telephone networks, where a physical circuit is created for each call. While circuit-switched networks provide high-quality voice transmission, they can be inefficient, as the dedicated line remains unused if one party is silent, leading to potential resource wastage.