Abstract: Communication by messages such as provided by the mobile telephony standard, Rich Communication Services (RCS), is described. A method for exchanging messages implemented by a user terminal capable of transmitting a message via one of a first network and a second network is described, the method including, when the terminal of the user is in a second transmission mode for a contact terminal, triggering a failover of the user terminal in a first transmission mode for the contact terminal, as soon as a notification is received at the terminal of the user of connecting to the first network of the contact terminal coming from a messaging server on the first network. Thus, returning to using the first network by the user terminal only depends on one single message: the connection notification, and the exchanges for determining the capacities of the terminal of the contact are reduced, since this notification is only sent when the connection of the contact terminal to the first network is effective.

Abstract: A method of making secure a communication between a first and at least one second terminal is disclosed. Each terminal being configured to interact with a user via a corresponding human-machine interface, the method comprising selecting, on the first terminal, a usability index for signals in a stream; transmitting the stream from the first terminal to at least one node of a network; connecting a third-party device to the node according to the usability index; and receiving, on the at least one second terminal, the stream from the node.

Abstract: A method and device for managing a communication between a calling terminal and a called terminal in the event that it is impossible to reach a called terminal during an attempt to establish a communication according to a first mode. The method includes: receiving a message including an identifier associated with the called terminal and an indication according to which the communication cannot be established; obtaining, from identifiers associated with the calling terminal and the called terminal, a host card including at least one piece of information relating to the reachability of the user of the called terminal; transmitting, according to an instant messaging protocol, the obtained response message to the calling terminal, the host card being configured to allow the triggering of a communication according to a mode that is distinct from the first mode.

Abstract: A method and device for managing a communication between a calling terminal and a called terminal in the event that it is impossible to reach a called terminal during an attempt to establish a communication according to a first mode. The method includes: receiving a message including an identifier associated with the called terminal and an indication according to which the communication cannot be established; obtaining, from identifiers associated with the calling terminal and the called terminal, a host card including at least one piece of information relating to the reachability of the user of the called terminal; transmitting, according to an instant messaging protocol, the obtained response message to the calling terminal, the host card being configured to allow the triggering of a communication according to a mode that is distinct from the first mode.

Abstract: Communication by messages such as provided by the mobile telephony standard, Rich Communication Services (RCS), is described. A method for exchanging messages implemented by a user terminal capable of transmitting a message via one of a first network and a second network is described, the method including, when the terminal of the user is in a second transmission mode for a contact terminal, triggering a failover of the user terminal in a first transmission mode for the contact terminal, as soon as a notification is received at the terminal of the user of connecting to the first network of the contact terminal coming from a messaging server on the first network. Thus, returning to using the first network by the user terminal only depends on one single message: the connection notification, and the exchanges for determining the capacities of the terminal of the contact are reduced, since this notification is only sent when the connection of the contact terminal to the first network is effective.

Abstract: A method is provided for managing at least one communication between a first communication hardware and at least a second communication hardware, used respectively on separate communication networks, respectively managed by a first communication management device and at least a second communication management device. The method can be implemented by the first communication management device and can include obtaining at least one risk indicator of non-compliance with the confidentiality of data associated with the at least one communication, and transmitting the at least one risk indicator to the first item of communication hardware.

Abstract: A method, device, program, server and terminal are provided for monitoring a data-exchange session between first terminals belonging to a first user and at least one second terminal belonging to a second user. The method includes, after the first user receives an invitation to establish a session, creating a first group of the first terminals belonging to the first user suitable for enabling the session to be established with the first group.

Abstract: The invention relates to a method for managing a conference involving a plurality of data processing devices (D1, D12, D22) communicating with one another via a communication network (RES). The devices are capable of requesting creation of a conference with a conference management module. Said module memorizes the information related to a conference created during a given duration. A created conference can be suspended and restarted after suspension if the restart request is received during the given duration from a device participating in the conference. Said method is characterized in that it includes a step for providing information related to the duration of a conference created on the devices participating in the conference. Said duration information is taken into account by the participating device when a message related to the conference is sent to the management module.

Abstract: A method, device, program, server and terminal are provided for monitoring a data-exchange session between first terminals belonging to a first user and at least one second terminal belonging to a second user. The method includes, after the first user receives an invitation to establish a session, creating a first group of the first terminals belonging to the first user suitable for enabling the session to be established with the first group.

Abstract: A method of dynamically evaluating the mood of a user of an electronic messaging system who uses a terminal to send an electronic message addressed to another user, the sending user having an element representative of that user's mood that is visible to the addressee of the message, and in general manner, by all of the contacts of the sending user. The sent message transits via a platform that includes a module for evaluating the mood of users, which module modifies a parameter measuring the mood of the user sending the message as a function of at least one predetermined criterion present in the sent message. The modified parameter is notified to the addressees of the message and to all or some of the contacts of the sending user.