Abstract: System and graphical user interface for managing communications between a remote terminal device operated by a remote pilot or other operator and an uncrewed aircraft. The communication system may include a satellite communication system or other relay communication system that is used to relay voice communication packets between the terminal device and the uncrewed aircraft. A computing system on board the uncrewed aircraft is configured to monitor an RF-communication channel between the uncrewed aircraft and an air traffic control (ATC) facility. In accordance with a state of the RF-communication channel and input provided at the remote terminal device, the computing system may transmit, buffer, delay, store, suppress transmission of, or delete voice communication messages generated by the remote pilot or operator at the terminal device.