A method, system and device enable transferring an audio signal between devices of a single user. The method includes pairing, over a master-less communication link, a narrowband communication device operating in a narrowband communication system and a broadband communication device operating in a broadband communication system. A call is then established between the narrowband communication device and the narrowband communication system or between the broadband communication device and the broadband communication system. Next, an audio quality parameter is determined at least one of the narrowband communication device and the broadband communication device. An audio signal of the call is then transmitted, over the master-less communication link and in response to the audio quality parameter, from one to the other of the broadband communication device and the narrowband communication device.