Teltonika GH4000 is the new generation of personal trackers Teltonika, this model is the evolution of previous models GH3000, GH1202 and GH1201, continues to maintain the same design but have changed the firmware and added new features. GH4000 allows voice calls, set different geofence for field service management, can be located periodically by sending and receiving SMS alerts, provided that the mobile phone number is previously added to the list of allowed numbers. In addition to the features mentioned Teltonika GH4000 should be noted two very interesting features, the first is the service routes detection device when it begins or ends a journey and the second is the function of man-down, that exceed the established degree tilt sends an alert.