A hands-free adapter for interfacing a mobile phone handset with an existing audio system attaches to the handset by means of the accessory connectors that are generally located on the bottom or back of the handset. The adapter modulates the received audio from an in-coming call with a pre-selected FM...http://www.google.fr/patents/US6163711?utm_source=gb-gplus-shareBrevet US6163711 - Method and apparatus for interfacing a mobile phone with an existing audio system
Method and apparatus for interfacing a mobile phone with an existing audio ...
