Communication terminal, image communication system communication method, and non-transitory recording medium

An image communication system, comprising:

• a first communication terminal;
• and
• a second communication terminal,
• the first communication terminal includes first circuitry configured to
• control a display to display a predetermined area image which is a part of a whole image, the whole image being shared with the second communication terminal,
• receive a request to display a destination setting screen;
• receive, in response to a user input based on the destination setting screen, a request to change a destination terminal to be the second communication terminal and a destination terminal identifier that identifies the second communication terminal;
• and
• transmit display change information to be received by the second communication terminal, the display change information including an identifier of the communication terminal, the destination terminal identifier and predetermined area information, and the predetermined area information indicating a predetermined area associated with the predetermined area image, and
• the second communication terminal includes second circuitry configured to
• receive the display change information transmitted from the first circuitry, and
• control a second display to display the predetermined area image corresponding to a predetermined area in the whole image shared by the first communication terminal.

A communication method, comprising:

• controlling, by a communication terminal, a display to display a predetermined area image which is a part of a whole image, the whole image being shared with another communication terminal;
• receiving a request to display a destination setting screen;
• receiving, in response to a user input based on the destination setting screen, a request to change a destination terminal to be the another communication terminal and a destination terminal identifier that identifies the another communication terminal;
• and
• transmitting display change information to be received by the another communication terminal, wherein
• the display change information includes an identifier of the communication terminal, the destination terminal identifier and predetermined area information, and
• the predetermined area information indicates a predetermined area associated with the predetermined area image.