A telecommunications system and method is disclosed for requiring a mobile station (MS) to notify the network of the number and/or duration of positionings performed by the MS. A service program or API (Application Program Interface), e.g., JAVA program, which is responsible for collecting information...http://www.google.de/patents/US6516197?utm_source=gb-gplus-sharePatent US6516197 - System and method for reporting the number and/or duration of positioning requests for terminal-based location calculation