Gather customer's real usage on mobile phones

This paper describes an application implemented on mobile phones with open OS (Windows CE and Symbian 6 and 7 compatible). Without any constraint for users, this tool gathers functionalities used (directory, calendar, SMS' number received and sent...), durations and navigations (presses on the keypad and history of windows opened). In addition, it allows to carry out experimentations, remote tests with real customers. With people having a mobile phone compatible, a first field trial achieved to test the tool. An operation description and different results obtained are presented. Furthermore, the limits and advices are also described.