System for Initiating Interactive Communication in Response to Audio Codes

A communication appliance has a processor, a data store, a display screen, an interface to a wireless network, a microphone, and software executable from a machine-readable physical medium, wherein the software provides a function for comparing incoming audio signals with signals stored in the data store as trigger signals, and a function for initiating an action or sequence of actions in response to recognizing an incoming signal as a trigger signal.