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 notification by an application server of an inability to deliver a message sent by a first terminal destined for a second terminal. The message is transmitted from the first terminal to the second terminal by way of the application server. The application server is configured to store at least one message with a view to a subsequent retransmission when the recipient is not reachable. The method includes: obtaining a message intended for the second terminal, detecting that the second terminal is not reachable, determining an identifier of the sender of the message obtained and of the identifier of the message obtained, and transmitting a notification message to the sender of the message. The message includes at least the identifier of the message obtained and an indication according to which the message obtained has not been delivered.

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 notification by an application server of an inability to deliver a message sent by a first terminal destined for a second terminal. The message is transmitted from the first terminal to the second terminal by way of the application server. The application server is configured to store at least one message with a view to a subsequent retransmission when the recipient is not reachable. The method includes: obtaining a message intended for the second terminal, detecting that the second terminal is not reachable, determining an identifier of the sender of the message obtained and of the identifier of the message obtained, and transmitting a notification message to the sender of the message. The message includes at least the identifier of the message obtained and an indication according to which the message obtained has not been delivered.

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: The invention relates to a method for sharing a digital content associated with a communication between a first terminal and a recipient terminal, the method comprising the following steps implemented on the first terminal: association (200) of a digital content with at least one navigation command and at least one rendering command, control (202) of transmission of the digital content to the recipient terminal, and, on establishment of the communication, detection (204) of the implementation of at least one navigation command associated with the content, and transmission (205) to the recipient terminal of a rendering command associated with the document. The invention relates also to a device and a terminal implementing the method, and, correspondingly, methods, devices and terminals for restoring a shared content.

Abstract: A method is provided for managing a secure session for transporting user packets through an address translation device between a client terminal and a first transport session management server. The session uses a first packet transmission address and at least one second packet transmission address different from the first address. The method includes a step of obtaining, by the first sever, the at least one second packet transmission address from the at least one second transport session management server, so that the client terminal can transfer packets to the first server by using at least the two addresses.

Abstract: The invention concerns a residential gateway device designed for a decentralized client equipment and comprising converting means for providing interoperability between to separate IP telephony services.

Abstract: A method is provided for managing a secure session for transporting user packets through an address translation device between a client terminal and a first transport session management server. The session uses a first packet transmission address and at least one second packet transmission address different from the first address. The method includes a step of obtaining, by the first sever, the at least one second packet transmission address from the at least one second transport session management server, so that the client terminal can transfer packets to the first server by using at least the two addresses.

Abstract: The invention concerns a residential gateway device designed for a decentralized client equipment and comprising converting means for providing interoperability between to separate IP telephony services.