Abstract: The invention relates to a method for dynamically controlling the quality of services attributed for the communication session of a user equipment (UE) in a 3GPP compliant communication network, comprising the steps of: initiating a communication session; an online charging system (OCS) detects an event (302) on the account of the user and decides that this event shall induce a change of parameters of the quality of service; the online charging system sends (303) a change of quality of service instruction to be applied after the consumption of the final granted units or immediately, to a policy control enforcement function (PCEF); the policy control enforcement function (PCEF) forwards said request to a policy and charging rules function (PCRF), once final units are exhausted; said policy and charging rules function (PCRF) derives modified policy charging and control rules from instruction for a change of quality of service within the session; said policy control enforcement function (PCEF) receives and appli

Abstract: Method of setting up a communication session (fm) between a calling communication client (C1) and a called communication client (C2), through a communication network (SN1, SN, SN2) comprising at least one address translation equipment (NAT1, NAT2). It comprises steps for transmission of signal messages (fs), transiting through address translation equipment and enabling interchange of physical addresses of communication clients to set up the communication session. This method is characterized in that at least one client transmits at least one signal message containing a physical address in a first location, and coded information containing this particular physical address in a distinct second location.

Abstract: The invention relates to an inter-domain router, for an Internet Protocol communications network, including a processing module to generate as a function of routing data outgoing messages intended for other routers which comprise information data representative of routes for routing IP datagrams and a control module to analyze at least some of the routing data, in order to define route aggregates as a function of selected configuration information, and for delivering output data representative of the route aggregates, so that the processing module can generate outgoing messages including information data representative of the route aggregates.

Abstract: The method comprises the steps of: the Policy and Charging Rules Function (PCRF) receiving (Step 1) user's subscription information, in order to determine an initial policy; the Policy and Charging Enforcement Function (PCEF) applying Step 2) the initial rules; the Policy and Charging Enforcement Function (PCEF) triggering (Step 3) the Extended Online Charging System (EOCS) for the user's service/network resource usage; the Extended Online Charging System (EOCS) rating and charging (step 4) the user, in real time; the Extended Online Charging System (EOCS) triggering (Step 5) a change of policy in the Policy and Charging Rules Function (PCRF); the Policy and Charging Rules Function (PCRF) determining (Step 6) new rules for the new policy; the Policy and Charging Enforcement Function (PCEF) receiving (Step 7) the new rules and applying them.

Abstract: A mobile communication terminal (T) comprising connection means (MCN) for connecting to access networks (N1, N2) and registration means (MREG) for periodically transmitting registration messages to a signaling server (SS) located within a public communication network (PUB) connected to these access networks. It is characterized by a memory (MMEM) capable of associating a validity period with at least some of the access networks, and in that the registration means (MREG) are provided for transmitting registration messages with a periodicity equal to the validity period associated with the access network (N1, N2) to which the terminal (T) is connected.

Abstract: A routing information management device for a router of a communication network comprises a first routing information base fed with routing information contained in routing protocol messages, a second forwarding information base having a maximum number of entries, and management means that compare at selected times the number of entries in the first routing information base relating to sending to a selected threshold less than or equal to the maximum number of entries in the second forwarding information base so as to feed the second forwarding information base with routing information selected as a function of the result of the comparison.

Abstract: A signaling server (SS) comprising means for transmitting SIP signaling messages with a client (T) through a NAT address translation device temporarily binding a public address to the client's private address, including means for receiving registration messages from the client and for sending the client a validity duration, at the end of which it must transmit a new registration message. The invention resides in the fact that if the client is located behind an address translation device, it determines an approximate expiry time for the temporary binding by successively sending test messages after an increasing wait time until the termination of the binding is detected. This approximate time is then used by being transmitted as the SIP validity period.

Abstract: Method of setting up a communication session (fm) between a calling communication client (C1) and a called communication client (C2), through a communication network (SN1, SN, SN2) comprising at least one address translation equipment (NAT1, NAT2). It comprises steps for transmission of signal messages (fs), transiting through address translation equipment and enabling interchange of physical addresses of communication clients to set up the communication session. This method is characterised in that at least one client transmits at least one signal message containing a physical address in a first location, and coded information containing this particular physical address in a distinct second location.

Abstract: Method of setting up a communication session between a calling client (C1) and a called client (C2), through a communication network (SN1, SN, SN2) containing at least one address translation device (NAT1, NAT2). This method contains stages for the transmission of signaling messages (fs), passing through at least one address translation device and allowing the exchange of the physical addresses of the clients. At least one of the clients implements a solution for the traversing of address translation devices. The method is innovative in that at least one client adds, within the sent signaling messages, a parameter representing the implementation of the traversing solution and that, in the presence of such a parameter, the network devices do not implement their own solutions for the traversing of address translation devices.

Abstract: A distributed, multistage agent for monitoring, diagnosis and maintenance of network devices comprises an input/output interface for receiving input monitoring and diagnostic data relevant to operation of a first neighboring agent and transmitting output monitoring and diagnostic data relevant to operation of the host network device to a second neighboring agent. An agent process analyzes the input data and generates processed data characterizing operation of the host network device, using a local database which stores expected performance data on operation of said network device. The processed data is correlated with the expected data any error is signaled to the network operator. The agents may be designed as a multiple stage process, the stages being triggered by the data output by an earlier stage only when needed.

Abstract: The invention relates to an inter-domain router (R), for an Internet Protocol (IP) communications network, comprising: (i) processing means (MT) for generating as a function of routing data outgoing messages intended for other routers which comprise information data representative of routes for routing IP datagrams and (ii) control means (MC) for analyzing at least some of the routing data, in order to define route aggregates as a function of selected configuration information, and for delivering output data representative of the route aggregates, so that the processing means (MT) can generate outgoing messages comprising information data representative of said route aggregates.

Abstract: The invention relates to a controlled telecommunications network and a signaling method for use in a network of that kind, which comprises active nodes (11) and signaling control units (3, 4). The method comprises the steps of reception by a signaling unit of a virtual circuit request (5) from a client terminal (1), setting up that circuit between the client terminal (1) and a server terminal (2), and negotiation between the terminals (1, 2) and the signaling control units (3, 4) of the characteristics to be assigned to a data stream (10) that has to cross the network. The following steps are then added: determination of the appropriate active codes, decision on a strategy for deployment of the active codes by the signaling control units, and then deployment (8) of the active codes among the active nodes (11) of the network from one or more signaling units (3, 4).

Abstract: A system is dedicated to controlling interruption of the operation of a router of an Internet protocol communication network. The system comprises observation means which, in the event of reception of an instruction to observe IP datagrams in transit received by the router, deliver an alert signal in case of absence of detection of IP datagrams during a first selected time period. It further comprises control means which, if it is required to interrupt the operation of the router, instruct processing means to generate outgoing warning messages to other routers reporting the withdrawal of routes for routing of IP datagrams by the router, instruct the observation means to commence an observation, and authorize interruption of the operation of the router in the event of reception of an alert signal from the observation means.

Abstract: A routing information management device for a router of a communication network comprises a first routing information base fed with routing information contained in routing protocol messages, a second forwarding information base having a maximum number of entries, and management means that compare at selected times the number of entries in the first routing information base relating to sending to a selected threshold less than or equal to the maximum number of entries in the second forwarding information base so as to feed the second forwarding information base with routing information selected as a function of the result of the comparison.

Abstract: A distributed, multistage agent for monitoring, diagnosis and maintenance of network devices comprises an input/output interface for receiving input monitoring and diagnostic data relevant to operation of a first neighboring agent and transmitting output monitoring and diagnostic data relevant to operation of the host network device to a second neighboring agent. An agent process analyzes the input data and generates processed data characterizing operation of the host network device, using a local database which stores expected performance data on operation of said network device. The processed data is correlated with the expected data any error is signaled to the network operator. The agents may be designed as a multiple stage process, the stages being triggered by the data output by an earlier stage only when needed.