A computer-implemented system and method for distributing messages by discussion group is provided. Discussion groups are monitored. An identity of a participant in each of two or more of the discussion groups is verified. Voice signals are received from the participant and speech from the participant is distinguished from ambient noise and third-party conversations in the voice signals. One of the discussion groups, specified by the participant to be associated with the voice stream, is identified. The speech is transmitted as a voice message to other participants in the identified discussion group.