1. An operator evaluation support device comprising: a speech recording unit configured to record speech times of a customer and an operator during a telephone call from the customer to which the operator attends; a superposition identifying unit configured to refer to the speech recording unit and identify a superposition speech, which is a speech of the operator that has started during a speech of the customer, during the telephone call; a problematic superposition identifying unit configured to identify a problematic superposition speech among the superposition speeches, by comparing a sound quality of a speech of the customer that has started after the superposition speech with a standard sound quality; a call information creating unit configured to refer to the speech recording unit and create telephone call information indicating the identified problematic superposition speech during the telephone call; and a sending unit configured to send the created telephone call information to an administrator terminal used by an administrator who is evaluating the operator.
4. The operator evaluation support device according to claim 1 , wherein the call information creating unit is configured to include, in the telephone call information, an evaluation point of the telephone call based on a superposition time and a superposition frequency of the problematic superposition speech.