Abstract: A method of switching over an audiovisual session involves receiving a request for session switchover to a second access network, emitted following a change of a state of attachment of the terminal; ordering switchover of the audiovisual session from a first output interface to a second output interface at a data stream gateway; recovering information related to a context of the audiovisual session switched over to the second interface; ordering evaluation at a contents profiles server of an adaptation of quality, that can be supported by the second interface; and requesting an update of the data stream to ensure the quality adaptation.

Abstract: The invention relates to a method of managing a plurality of multimedia sessions involving user terminals connected to an access point of an IP network including at least one collection node when at least one audiovisual first session is in progress during which a first user terminal receives an audiovisual content encoded in the form of a plurality of SVC audiovisual streams via a link between said access point and said at least one collection node. The method of the invention receives a change request relating to a second session that is one of said plurality of sessions, recovers information relating to a context of said plurality of sessions, evaluates a new distribution of resources between said first session in progress and the second session, decides to accept or reject the change request as a function of the result of said evaluation and sends a message containing its decision.

Abstract: The invention relates to a method of switching over an audiovisual session in a telecommunications network (1) comprising at least one first access network (31) and one second access network (32), an audiovisual session being in progress, during which at least one user terminal (10) attached to the first access network and able to attach itself to the second access network receives from a contents server (61) at least one data stream constituent of an audiovisual content by way of a data stream gateway (41) comprising a first output interface (41S1) to said first access network and a second output interface (41S2) to said second access network.

Abstract: The invention relates to a method of managing a plurality of multimedia sessions involving user terminals connected to an access point of an IP network including at least one collection node when at least one audiovisual first session is in progress during which a first user terminal receives an audiovisual content encoded in the form of a plurality of SVC audiovisual streams via a link between said access point and said at least one collection node. The method of the invention receives a change request relating to a second session that is one of said plurality of sessions, recovers information relating to a context of said plurality of sessions, evaluates a new distribution of resources between said first session in progress and the second session, decides to accept or reject the change request as a function of the result of said evaluation and sends a message containing its decision.

Abstract: A system for synchronizing data between service portals, each hosting at least one personal information manager (PIM) service and each of the portals being accessible by means of remote access terminals. The system includes first data synchronization means adapted to establish a correspondence between data stored in the portals. The first synchronization means includes a client-server architecture. The client and the server of the architecture respectively comprise a module hosted in one of the portals and communicating with a server implementing the personal information manager service of the portal, and a synchronization module hosted within at least the other portal and communicating with a server hosting a different personal information manager service. The modules communicate via a computer network.