Elevator control device, elevator and communication processing method

The processing part of the expected elevator number control part has fewer elements and can support various communication specifications. This elevator control device (4) is provided with: an overall control unit (5); and a communication control unit (6) that controls communication with a plurality of terminal devices under the control of the overall control unit (5). The overall control unit (5) is provided with: a communication timing command unit (55) that commands a communication timing for performing communication with the terminal device; and a first communication unit (54) that communicates with the communication control unit (6) on the basis of the communication timing. The communication control unit (6) has a first communication unit (61) that communicates with the first communication unit (54) of the overall control unit (5), a communication speed switching unit (66) that switches, for each terminal device, the communication speed of communication with the terminal device, and a second communication