Abstract: The method of the invention comprises: a step of receiving a message (M1) sent by a user (T-B) of the first network, said message containing an access rule authorizing a user of a second network to access at least one multimedia content, said content being indexed with a content server (MS-B2) of the first network; a step of sending a first notification message (M2) to a trusted entity (PFS) managing the interface between the first network (NW-B) and the second network (NW-A), the first notification message (M2) containing a remote access rule (RAD) authorizing said user of the second network to access multimedia contents belonging to said user of the first network; and a step of commanding a gateway (HGW-B) of the first network (NW-B) by means of a local access rule configuring said gateway, such that said gateway transmits a catalog of contents to which said user of the second network is authorized to access on reception of an access request relating to said catalog coming from said user of the second ne

Abstract: The method of the invention comprises: a step of receiving a message (M1) sent by a user (T-B) of the first network, said message containing an access rule authorizing a user of a second network to access at least one multimedia content, said content being indexed with a content server (MS-B2) of the first network; a step of sending a first notification message (M2) to a trusted entity (PFS) managing the interface between the first network (NW-B) and the second network (NW-A), the first notification message (M2) containing a remote access rule (RAD) authorizing said user of the second network to access multimedia contents belonging to said user of the first network; and a step of commanding a gateway (HGW-B) of the first network (NW-B) by means of a local access rule configuring said gateway, such that said gateway transmits a catalog of contents to which said user of the second network is authorized to access on reception of an access request relating to said catalog coming from said user of the second ne

Abstract: Data flows generated in accordance with a connected mode protocol and formatted in packets in accordance with a non-connected mode protocol are transmitted via an ATM network. A set of virtual circuits of the ATM network is assigned in advance to each pair of access points of the ATM network, without allocating transmission rate resources to them. When an access point receives a request, formulated in accordance with the connected mode protocol, to establish a connection between a source address and a destination address accessible via another access point of the ATM network, an available virtual circuit is selected from the set assigned to this pair of access points and a resource management cell containing a request to activate the virtual circuit is transmitted on the selected virtual circuit. When this cell is received by a node of the ATM network located on the selected virtual circuit, a transmission rate resource is allocated, if it is available, to the selected virtual circuit.

Abstract: A data transmission system has a time interval allocation system with a time interval management unit (UGIT) and a plurality of counters (CSO.sub.1 to CSO.sub.n) connected to one another in a cascaded series. The input of a counter (CSO.sub.i) is connected to the output of the preceding counter (CSO.sub.i-1) in the series. The input of the first counter (CSO.sub.1) is connected to the output of the time intervals management unit. Each counter (CSO.sub.i) is associated with an input carrying a time interval allocation demand signal (dem.sub.i) and provided with a command input for receiving the allocation demand signal (dem.sub.i) and delivering either the time interval value (ITin) present on its input if the allocation demand signal (dem.sub.i) is inactive, or the time interval value present on its input increased by a unit (ITin+1) if the demand signal (dem.sub.i) is active. The output of each counter (CSO.sub.i) is connected to the input of a register (RegAd.sub.