A method and system for automatically completing international telephone calls using a pre-selected discount telephone service. An array of Pic I/O pin used to monitor a cell phone activity. When the dialing of an outgoing call is detected, a central processing unit, in conjunction with a DTMF decoder,...http://www.google.de/patents/US7003281?utm_source=gb-gplus-sharePatent US7003281 - Method and system for routing cellular calls to desired discount telephone services
