Method for improved operation of a telecommunications network comprising a plurality of user terminals, using network function virtualisation within the telecommunications network, the telecommunications network providing the plurality of user terminals with a plurality of telecommunications services by means of a plurality of virtual network function instances, the telecommunications network having a database functionality comprising a first database network node and at least one second database network node, the method comprising the following steps: - in a first step, so as to provide a specific telecommunications service from the plurality of telecommunications services to one or more user terminals, a first virtual network function instance is used, the first virtual network function instance comprising operating state data corresponding to the operating state, the operating state data corresponding to the operating state of the first virtual network function instance and these operating state data being transmitted to the first database network node, - in a second step following the first step, if a fault state and/or overload state of the first virtual network function instance are detected by the first database network node or by another network node of the telecommunications network, a second virtual network function instance is provided, - in a third step following the second step, the operating state data are transmitted to the second virtual network function instance or requested by the second virtual network function instance, and the second virtual network function instance is used to provide the specific telecommunications service to the user terminal or plurality of user terminals, characterised in that during the second step at least some of the operating state data are replicated from the first database network node to the second database network node, the operating state data being replicated only if the fault state and/or overload state of the first virtual network function instance are detected. the telecommunications network providing the plurality of user terminals with a plurality of telecommunications services by means of a plurality of virtual network function instances, the telecommunications network having a database functionality comprising a first database network node and at least one second database network node, the method comprising the following steps: - in a first step, so as to provide a specific telecommunications service from the plurality of telecommunications services to one or more user terminals, a first virtual network function instance is used, the first virtual network function instance comprising operating state data corresponding to the operating state, the operating state data corresponding to the operating state of the first virtual network function instance and these operating state data being transmitted to the first database network node, - in a second step following the first step, if a fault state and/or overload state of the first virtual network function instance are detected by the first database network node or by another network node of the telecommunications network, a second virtual network function instance is provided, - in a third step following the second step, the operating state data are transmitted to the second virtual network function instance or requested by the second virtual network function instance, and the second virtual network function instance is used to provide the specific telecommunications service to the user terminal or plurality of user terminals, - in a first step, so as to provide a specific telecommunications service from the plurality of telecommunications services to one or more user terminals, a first virtual network function instance is used, the first virtual network function instance comprising operating state data corresponding to the operating state, the operating state data corresponding to the operating state of the first virtual network function instance and these operating state data being transmitted to the first database network node, - in a second step following the first step, if a fault state and/or overload state of the first virtual network function instance are detected by the first database network node or by another network node of the telecommunications network, a second virtual network function instance is provided, - in a third step following the second step, the operating state data are transmitted to the second virtual network function instance or requested by the second virtual network function instance, and the second virtual network function instance is used to provide the specific telecommunications service to the user terminal or plurality of user terminals, characterised in that during the second step at least some of the operating state data are replicated from the first database network node to the second database network node, the operating state data being replicated only if the fault state and/or overload state of the first virtual network function instance are detected.