For operating a telecommunications network for mobile telecommunication, a network register is used holding identifiers of mobile terminals for communication via the telecommunications network and network-related user data of the terminals. Thereby, a change in the shooting range of the image sensor due to the camera-shake is mostly compensated for and the shooting range is changed by one pixel at each shooting. The night-light may be of particular use in babies’ nurseries. An index is assigned to each near macroblock.