The function "Homezone" which can have a different name depending on the manufacturer, offers us the possibility to create a virtual area which within the dog should stay. For example, we can draw a radius around our house or property, which is stored in the app. If the GPS signal and the dog leaves this area and crosses the virtual boundary set by us, we get a signal on our smartphone. Most of the time we can choose to receive a text message or a phone call when the dog crosses this boundary. This gives us peace of mind especially with adventurous dogs. And it has often happened that pedigree dogs were stolen from gardens or yards. In such a case, the GPS signal can provide additional protection.