Smartphones and other mobile devices can be disruptive in certain contexts such as a play or concert. Users may fail to turn off their devices in such contexts or may not know the correct way to do so. Professional performances are often at venues where performance-related equipment transmits on restricted radio bands for reliable wireless communication necessary for the performance. With user permission, an existing radio in a user device is used to detect energy on restricted bands used for such communication. When energy is detected, it is indicative that the device is within range of a professional performance. With user permission, upon such detection, the user is provided a reminder to switch the device to a suitable mode. Alternatively, if the user permits, such mode switch can be performed automatically. At a subsequent time, when no energy is detected, one or more user-configured actions such as switching the device mode to normal, contacting a trusted user, etc. are performed automatically.
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Dooley, Craig, "Detecting Energy on Restricted Bands to Automatically Configure Device State", Technical Disclosure Commons, (December 26, 2022)