An elevator system for selecting a wireless communication system (206a, 206b), wherein the elevator system comprises: an elevator car arranged to travel along an elevator shaft, a car control unit arranged to the elevator car, and an elevator control unit, wherein the car control unit and the elevator control unit comprise communication means (202, 204) to establish at least two wireless communication systems (206a, 206b) for providing wireless communication (208a, 208b) between the elevator control unit and the car control unit, and characterized in that the elevator control unit is configured to: obtain selection data representing at least one selection parameter, wherein the at least one selection parameter comprises at least one elevator related selection parameter, wherein the at least one elevator related selection parameter comprises at least one of the following: a location of the elevator car inside the elevator shaft, a speed of the elevator car, and/or a sway of a suspension device of the elevator car, and select based on the obtained selection data the most appropriate wireless communication system (206a, 206b) from amongst the at least two wireless communication systems (206a, 206b) at each point of time to be used to provide the wireless communication connection (208a, 208b) between the elevator control unit and the car control unit. an elevator car arranged to travel along an elevator shaft, a car control unit arranged to the elevator car, and an elevator control unit, wherein the car control unit and the elevator control unit comprise communication means (202, 204) to establish at least two wireless communication systems (206a, 206b) for providing wireless communication (208a, 208b) between the elevator control unit and the car control unit, and characterized in that the elevator control unit is configured to: obtain selection data representing at least one selection parameter, wherein the at least one selection parameter comprises at least one elevator related selection parameter, wherein the at least one elevator related selection parameter comprises at least one of the following: a location of the elevator car inside the elevator shaft, a speed of the elevator car, and/or a sway of a suspension device of the elevator car, and select based on the obtained selection data the most appropriate wireless communication system (206a, 206b) from amongst the at least two wireless communication systems (206a, 206b) at each point of time to be used to provide the wireless communication connection (208a, 208b) between the elevator control unit and the car control unit. obtain selection data representing at least one selection parameter, wherein the at least one selection parameter comprises at least one elevator related selection parameter, wherein the at least one elevator related selection parameter comprises at least one of the following: a location of the elevator car inside the elevator shaft, a speed of the elevator car, and/or a sway of a suspension device of the elevator car, and select based on the obtained selection data the most appropriate wireless communication system (206a, 206b) from amongst the at least two wireless communication systems (206a, 206b) at each point of time to be used to provide the wireless communication connection (208a, 208b) between the elevator control unit and the car control unit.