A communication system comprises a communication device configured to receive a data message, such as a text message, and to generate and send a voice reply to the data message using a simple transmit action. The data message comprises an identifier that can be used to determine a reply path related to the data message. Thus, when a user receives the data message, they can read the message initiate the simple transmit action, and reply to the data message by speaking an appropriate reply into the communication device. The spoken response is stored as a voice message and attached to a data message that is sent using the reply path identified by the identifier.