A method is provided of enabling a function(s) of a telephone to be controlled. The telephone is operative to perform the function(s) in response to command(s) from a printer. The method includes providing a control interface which contains information relating to the function(s) and has coded data on...http://www.google.fr/patents/US7580698?utm_source=gb-gplus-shareBrevet US7580698 - Method for communication device control using coded marks
Method for communication device control using coded marks