by means of the multigroup controls equally call registering and display devices are arranged on the floors by means of which devices calls can be entered for desired destination floors immediately after entry of the call the identification for example in the form of a letter of the most favorable elevator selected for the destination floor and an arrow indicating the position of the selected elevator relative to the call entry location are indicated in a display field of the call registering and display device the destination call controls of the elevator groups g1 to g5 are connected together and combined into the multigroup control so that on the entry of a call for a desired destination floor the elevator most favorable for this call is selected from the elevators of all elevator groups g1 to g5 which serve the same floor and displayed in fig6 and 7 cars of a elevator group are shown with the car door 7 open at a stop on a transfer floor shaft doors 9 and 10 which are identified by indicator plates 8 with the elevator letters of another elevator group are to be seen through the opened car door 7 according to fig6 a display field 11 of a display device such as has become known in similar form for example by ep b 0 320 583 is arranged in the cars of the elevator groups whereagainst two display fields 12 and 13 which are arranged to the right and to the left beside the car door 7.