A CTI server receives calls from telephone terminals. The CTI server includes
an
analysis unit, an icon creating unit, and an icon display control unit. The analysis
unit analyzes conditions for a call from a telephone terminal to generate parameter
which represents the presumed psychological state of a customer using the telephone
terminal. The icon creating unit creates an icon for visually displaying the presumed
psychological state of the customer on the basis of the parameters. The icon display
control unit for displaying the presumed psychological state of the customer using
the icon.