There are two types of DATI telephone:
The PTI smartphone or PTI phone with a built-in native application: its PTI application cannot be uninstalled, deleted or deactivated by the user. This ensures that all lone workers always have functional protection.
Applications to be installed on the lone worker's smartphone: these applications can be downloaded from app stores and are offered with a monthly paid subscription. They offer basic PTI functions.
At first glance, companies consider this solution to avoid additional costs and quickly protect lone workers. However, unlike the native application of a PTI phone, it can be removed. It therefore does not guarantee continuous, effective protection at all times.