Smartphones today are capable of being connected to one or more devices via wireless communication technologies, such as Bluetooth®. While a smartphone is connected (or “paired”) with a device, an audio-distribution profile of the smartphone governs routing of audio to and from mechanisms (e.g., speakers, microphones) of either the smartphone or a device to which the smartphone is paired. A protocol that routes audio, based on an input telephone number being an emergency telephone number, is described.
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Coccaro, Noah and Champy, Adam, "Emergency Behavior for a Connected Smartphone", Technical Disclosure Commons, (January 09, 2018)