maria luz caliboJan 28, 2012Metro PCS Sued by Klausner Technologies for Visual Voicemail Patent Infringement0 CommentsMetro PCS Sued by Klausner Technologies for Visual Voicemail Patent Infringement | EON: Enhanced Online NewsKlausner Technologies, Inc. announced today that it has filed suit against US mobile carrier MetroPCS (PCS:NYSE) for patent infringement under the Kla