An exemplary method is implemented by an unmanned air vehicle (UAV) for providing voice communications to an air traffic control (ATC) station. Two-way first voice communications are supported with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link. Two-way second voice communications are supported with a controller at the ATC station over an analog RF link. The first and second voice communications are coupled to each other so that two-way voice communications are provided between the human operator and the controller. A determination is made that the first communications with the human operator is not operative. Based on this determination, autonomous voice announcements of flight parameters of the UAV are generated, and transmitted via the analog radio frequency link to the ATC station.