Information that a called person desires to inform a calling person of is reported during a call made by the calling person, and it is notified that the calling person has acquired the information. A communication terminal apparatus that performs telephone communications via a communication network includes: a conversation unit 144 that inputs therein a sound via a transmitter and outputs a sound from a receiver; an input unit 110 that receives an operation of a user; a display unit 140 that displays an image; a communication unit 120 that establishes communications with a server 300, which is provided on the communication network, on a basis of a telephone number of a calling destination, which is input from the input unit 110; and a notification unit 130 that, in a case where the communication unit 120 acquires multimedia data corresponding to the telephone number of the calling destination from the server 300 after the communications are established with the server 300, notifies the user of acquisition of the multimedia data.