Circuit switching is a method of communication where a dedicated 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 a consistent and reliable transmission of data. This technique is commonly used in traditional telephone networks. When you make a call, a circuit is created between your phone and the recipient's phone, ensuring that both parties can communicate without interruptions. However, this method can be inefficient, as the dedicated line remains unused if one party is silent.