A communication system has an audio receiver path, and a digital transceiver path, wherein both paths are integrated on a single integrated circuit. The audio receiver path has a concealment device, and the communication system also has at least one functional block connected to and shared by the both paths. The communication system has a digital controller connected to both paths, the at least one functional block, and the concealment device. The digital controller is operable to schedule the operation of the digital transceiver path, and to inform the concealment device of start and end points of the activity of the digital transceiver path. The concealment device is operable to mask interruptions in the audio stream from the audio receiver path caused during periods of activity of the digital transceiver path.