A method and apparatus is disclosed for providing continuation of a communication call as a user moves from the coverage area of one communication network to the coverage area of another communication network having different access media and different applications. A voice, data, video or multimedia...http://www.google.fr/patents/US5664007?utm_source=gb-gplus-shareBrevet US5664007 - Method and apparatus for providing continuation of a communication call across multiple networks
Method and apparatus for providing continuation of a communication call ...