Emergency notification system for a portable device

A method, comprising:

• maintaining, by a device comprising a processor, emergency broadcast information in a memory, wherein the emergency broadcast information identifies broadcast technologies supported by the device and corresponding emergency broadcast channels respectively associated with the broadcast technologies;
• modifying, by the device, the emergency broadcast information based on data received via over-the-air programming;
• receiving, by the device via a control channel of a telephony network device of a telephony network, emergency alert information identifying an occurrence of an emergency broadcast;
• in response to determining, based on the emergency alert information, that the emergency broadcast is relevant according to a defined criterion,
• retrieving, by the device, a subset of the emergency broadcast information,
• rendering, as an audio output by the device, a notification of the occurrence of the emergency broadcast, wherein the notification comprises at least the subset of the emergency broadcast information, and
• tuning, by the device, to an emergency broadcast channel, of the plurality of emergency broadcast channels, identified by the subset of the emergency broadcast information.

A non-transitory computer-readable medium having stored thereon computer-executable instructions that, in response to execution, cause a communication device comprising a processor to perform operations, the operations comprising:

• storing emergency broadcast information that identifies a set of broadcast technologies supported by the communication device and a corresponding set of emergency broadcast channels respectively associated with the set of broadcast technologies;
• modifying the emergency broadcast information based on data received via over-the-air programming;
• receiving, via a control channel of a telephony network, emergency alert information indicating an occurrence of an emergency broadcast;
• in response to determining, based on the emergency alert information, that the emergency broadcast is relevant,
• retrieving a subset of the emergency broadcast information,
• rendering a notification of the occurrence of the emergency broadcast, wherein the notification is rendered as an audio output and comprises at least the subset of the emergency broadcast information, and
• tuning the communication device to an emergency broadcast channel, of the set of emergency broadcast channels, identified by the subset of the emergency broadcast information.