Abstract: The disclosed technology relates to the management of a user interface of a communication terminal involved in ongoing communication by a communication terminal, referred to as an initiator terminal. A method is described for managing a user interface of at least one communication terminal by an initiator terminal during ongoing communication between communication terminals including the initiator terminal and at least one corresponding terminal, the user interface management method comprising, at least prior to a change, triggered by the initiator terminal, of the communication mode of the ongoing communication, providing change signaling data to the user interface of the at least one communication terminal, the change signaling data being able to control the user interface of a communication terminal. The risks of failure of the change of communication mode and therefore of unwanted closure of the ongoing communication are therefore reduced or even avoided.