In-Band Signaling is a method of communication where control signals are sent over the same channel used for data transmission. This means that both the data and the signaling information share the same frequency or bandwidth. It is commonly used in telecommunication systems, allowing devices to manage connections and control data flow without needing a separate channel. This technique is efficient because it reduces the need for additional resources, making it easier to implement in various systems. However, it can also lead to potential issues, such as interference between data and signaling, which may affect overall performance and reliability.