All our devices come with internal memory units. When you enter into a location without GSM coverage, all events and tracking information will be captured and stored into our device memory unit. All the stored data will then be transmitted to our servers when the GSM signal is restored and none of the tracking data will be lost.
Therefore, if you drive into an enclosed area without GSM (e.g. basement), and the last event captured before entering the basement is IGN ON, your mobile app will show the IGN ON status although the vehicle is parked.
However, as soon as the vehicle drives out of the basement and the GSM coverage is back, all events on your mobile app, including IGN OFF and ON events while the vehicle was in the basement, will be updated accordingly.