Which system is NOT part of the cutters' interior communication systems?

The Integrated Voice Communication System, Sound Powered Phone, and VHF Radio are all components typically included in cutters' interior communication systems, serving specific communication functions vital for operational effectiveness. The Integrated Voice Communication System is designed for secure, reliable communication throughout the vessel, enhancing coordination among crew members during operations. Sound Powered Phones allow communication without relying on electrical power, which can be critical in emergencies. The VHF Radio is used for communication with other vessels and shore facilities, but it functions primarily as an external communication tool rather than an internal system.

However, the "Kite" does not fit into the context of communication systems. It doesn’t function as a communication device within the internal systems of the cutter. It serves no purpose in facilitating verbal interaction, making it the clear choice when identifying which item is not part of the cutters' interior communication systems.