Radiotherapy treatment series cannot be interrupted. This poses a challenge when carrying out the treatment. Patients and staff need special protection here too. In order to avoid contact and touching, the waiting area must therefore be reorganised so that radiotherapy can continue uninterrupted while minimising the risk of infection for staff and patients.Therefore, the OPASCA "Rapid Call" solution was introduced to fulfil these requirements. This offers protection for patients and staff through contactless check-in and automatic calling.