- Phone calls: The patient's answers to the SMS-track, constitute whether a personal phone call from a health professional if necessary. The aim of the call is to help and support the patient in continuing to keep doing IWT with IW app. Questions from the health professionals addresses how the patient is doing in general, why the patient has answered that they haven't been doing IWT the past week, questions regarding how to help the patient doing IWT, or questions about the IW app. The patient will have time to ask questions of concern to the health professional.