networks other than the home networks and operated by...http://www.google.co.uk/patents/US20020174212?utm_source=gb-gplus-sharePatent US20020174212 - Mobile data networksAdvanced Patent SearchPublication numberUS20020174212 A1Publication typeApplicationApplication numberUS 10/038,141Publication date21 Nov 2002Filing date3 Jan 2002Priority date15 Jan 2001Also published asCA2365314A1, EP1223737A1Pub