Disclosed herein are systems, methods, and computer readable-media for targeted advertising, the method including receiving an audio stream containing user speech from a first device, generating text based on the speech contained in the audio stream, identifying at least one key phrase in the text, receiving from an advertiser an advertisement related to the identified at least one key phrase, and displaying the advertisement. In one aspect, the method further includes receiving from an advertiser a set of rules associated with the received advertisement and displaying the advertisement in accordance with the associated set of rules. The first device can be a converged voice and data communications device connected to a network. The communications device can generate text based on the speech. In one aspect, the method displays the advertisement on one or both of a converged voice and data communications device and a second communications device. A central server can generate text based on the speech. At least one key phrase in the text can be identified based on a confidence score threshold. In another aspect, the method further includes receiving multiple audio streams containing speech from a same user and generating text based on the speech contained in the multiple audio streams. The advertisement can be displayed after the audio stream terminates.