A method of performing a switching procedure of an eCall device from a first state of activity to a second state of activity whereby details of the switching procedure are preferably stored in a report file. The report file is preferably stored in a storage unit which can be part of a database. Furthermore, the present invention relates to an eCall device being adapted for performing a switching procedure from a first state of activity to a second state of activity and relates to a backend unit being adapted for supporting a switching procedure of an eCall device from a first state of activity to a second state of activity. Beyond the present invention relates to an eCall system being adapted for performing a switching procedure of an eCall device from a first state of activity to a second state of activity.