Abstract: The present invention relates to a method of operating a network node (e.g. an MGCF) in a telecommunications network system during a call, wherein the call has been established through a packet switched and a circuit switched part of the network. The method comprises a step of the network node receiving an indication of the call being terminated. The network node also receives call detail data from a switching network node in the circuit switched part of the network, and includes the received call detail data in a call termination message for making the call detail data available in the packet switched part of the network. Then, the network node transmits the termination message to a call controlling SIP-AS in the packet switched part of the network. The present invention further relates to methods of operating a call controlling SIP-AS and an extended services SIP-AS.

Abstract: A method in a switching node of a circuit-switched telecommunications network comprises the steps of receiving from a packet-switched telecommunications network a request to establish a call towards a mobile station of the circuit-switched telecommunications network, and sending a request message to a location register for an instruction comprising one or more parameters for allowing the continuation of the establishment of the call to the mobile station. Upon receiving the one or more parameters from the location register, at least one of the one or more parameters is used to establish the call towards the mobile station. Furthermore, at least one of the one or more parameters is sent to the packet-switched telecommunications network. The at least one or more parameters sent to the packet-switched telecommunications network relates to the location of the mobile station. Therefore, entities within a packet-switched telecommunications network (e.g.

Abstract: The invention relates to a method for controlling a communication activity of a roaming subscriber in a visited mobile network. The control node receives a combined subscriber profile (315) from a signaling transfer node (130) of the visited mobile communications network (60), the combined subscriber profile being a combination of a home subscriber profile (215) and a local subscriber profile (115). The home subscriber profile (215) contains subscriber related information of the roaming subscriber of the home mobile communications network (50). The local subscriber profile (115) contains subscriber related information of the roaming subscriber of the visited mobile communications network (60).

Abstract: A method in a switching node of a circuit-switched telecommunications network comprises the steps of receiving from a packet-switched telecommunications network a request to establish a call towards a mobile station of the circuit-switched telecommunications network, and sending a request message to a location register for an instruction comprising one or more parameters for allowing the continuation of the establishment of the call to the mobile station. Upon receiving the one or more parameters from the location register, at least one of the one or more parameters is used to establish the call towards the mobile station. Furthermore, at least one of the one or more parameters is sent to the packet-switched telecommunications network. The at least one or more parameters sent to the packet-switched telecommunications network relates to the location of the mobile station. Therefore, entities within a packet-switched telecommunications network (e.g.

Abstract: A method of and servers for establishing a signalling path (20) for a communication session between a calling party (2) and a called party (11) in an Internet Protocol, IP, communications network. The signalling path (20) between the calling party (2) and the called party (11) is established via at least one subscriber registrar server (32) and at least one application server (30) invoking at least one service for the communication session. Dependent on the type of service, if capable for taking over control of the communication session, the at least one subscriber registrar server (32) may be at least partly released from the signalling path (20) for the at least one invoked service.

Abstract: Method for loading a web page at a web page requester (2, 42, 101), in a telecommunication network, said telecommunication network comprising an internet protocol IP access point server (8, 21, 44, 85) and a web server (6, 46, 88) hosting said web page. The method comprises a step of receiving a request (3), by said IP access server (8, 21, 44, 85), from said web page requester (2, 42, 101), for loading said web page and a step of determining (4), by said IP access point server (8, 21, 44, 85), that said web page qualifies for web page loading policy handling.

Abstract: A method for controlling congestion in a cell of a mobile communications network, the mobile communications network comprising a plurality of cells for communicating with user devices, comprises the steps of analysing over a period of time the load in a group of neighboring cells, the group of neighboring cells forming a subset of the plurality of cells.A movement path of a cluster of user devices is estimated based on the analysis of the load in the group of neighboring cells. The size of one or more cells along the estimated movement path is adapted to control congestion in one or more cells. The reducing or increasing a cell size may be performed artificially by adjusting a threshold value at which one or more user devices should initiate handover to a different cell.

Abstract: Method for accessing a Hypertext Transfer Protocol (HTTP) server from a user equipment. The method comprises the steps of transmitting, by the user equipment, an HTTP message destined for that HTTP server to an Internet Protocol Multimedia Subsystem (IMS) server with which the user equipment is in a connection, determining, by the IMS server, on the basis of the HTTP message whether a trust relation exists between the IMS server and the HTTP server, and if a trust relation exists transmitting the HTTP message from the IMS server to the HTTP server.

Abstract: Controlling the processing load in a first node 100, resulting from received signaling by particular second nodes 210, 220. 230, 240, by determining the amount of signaling received from the particular second nodes. If the average signalling received over a predetermined period in the first node 100, results in a processing load higher than a predetermined threshold level 520, a calculation is performed by the first node based on the actual processing usage and the threshold level 520, yielding a signalling amount limitation for a second node. Subsequently a table comprising the calculated allowed processing load, representing an amount of signalling allowed, is arranged and submitted to the respective second node. This signalling amount limitation table enables the second node to limit its amount of signaling towards first node 100, with the intention to prevent congestion in first node 100.

Abstract: Systems and methods of transferring a message in a SIP-based communications network, from a first node to a third node via intermediate nodes are provided. In one exemplary embodiment, a network node for registering in an IMS communications network may include a controller circuit. The controller circuit may be configured to determine a first group identifier associated with P-CSCF entities. Further, the controller circuit may be configured to select, based on the first group identifier, a network address corresponding to one of the P-CSCF entities. Also, the controller circuit may be configured to send, to the selected P-CSCF entity using the network address, a message to register with each P-CSCF entity associated with the first group identifier. In addition, the controller circuit may be configured to establish a SIP session through a different P-CSCF entity associated with the first group identifier.

Abstract: A UE has a subscription to a Home Public Land Mobile Network (H-PLMN) and has a subscription to an Alternative Roaming Provider (ARP) stored in a subscription database. The ARP is adapted to provide a communication service to the subscriber if the subscriber roams into a Visited Public Land Mobile Network (V-PLMN) which is different from the H-PLMN. The method includes registering the UE at a control node of the V-PLMN and sending, by the control node, a request for subscription data to the subscription database. The method further includes: sending, by the subscription database, an indication of the ARP to the control node; generating, by the control node, network identification information, based on the indication of the ARP and the indication of the V-PLMN; and sending, by the control node, the network identification information to the UE.

Abstract: A method and an access server operating in a packet switched telecommunication network, such as a Voice over Internet Protocol (VoIP) network, for distributing an announcement to user equipment. The method comprises receiving an announcement from a media source, receiving a caching indication from the media source to allow caching of the announcement and sending the received announcement to the user equipment. The access server can cache the announcement in a caching unit associated with the access server on receipt of the caching indication and the announcement. Furthermore a method and a media source cooperating with the access server for generating an announcement and a caching indication to allow the access server to cache the announcement.

Abstract: Systems and methods of transferring a message in a Session Initiation Protocol (SIP)-based communications network, from a first node to a third node using a second node are provided. In one exemplary embodiment, a method of registering in an Internet Protocol Multimedia Subsystem (IMS) communications network, a User Agent (UA) using a Proxy Call Session Control Function (P-CSCF) entity with a Serving Call Session Control Function (S-CSCF) entity may include determining a first group identifier associated with a plurality of P-CSCF entities. Based on the first group identifier, the method may include selecting a network address corresponding to one of the plurality of P-CSCF entities. Further, the method may include storing subscriber data in a repository associated with the selected P-CSCF entity.

Abstract: A method and an access server operating in a packet switched telecommunication network, such as a Voice over Internet Protocol (VoIP) network, for distributing an announcement to user equipment. The method comprises receiving an announcement from a media source, receiving a caching indication from the media source to allow caching of the announcement and sending the received announcement to the user equipment. The access server can cache the announcement in a caching unit associated with the access server on receipt of the caching indication and the announcement. Furthermore a method and a media source cooperating with the access server for generating an announcement and a caching indication to allow the access server to cache the announcement.

Abstract: Method and server entity for forwarding a message containing a host name or domain name in an interne based communications network from a User Agent (UA) to the communications network or vice versa. The method comprises the steps of querying, by a proxy entity, a Domain Name Server (DNS) for obtaining from the Domain Name Server an Internet Protocol (IP) address associated with the host name or domain name, and including the Internet Protocol address in the message prior to forwarding the message to the communications network or User Agent, respectively, by the proxy entity.

Abstract: Method of transferring a message in a Session Initiation Protocol based communications network, from a first node to a third node via a second node. The method comprises the steps of: storing, in a repository associated with the first node, a group identifier associated with a plurality of second nodes; deriving, by the first node, on the basis of the group identifier a network address corresponding to one second node of the plurality of second nodes; and transmitting the message to the third node via the second node derived by the first node.

Abstract: There is provided a method of operating a node (512, 520, 1102) for use by a first network (502, 504), the first network (502, 504) applies an authentication process to allow a subscriber access to a network, wherein authentication information used in the authentication process is derived using a key associated with a subscriber identity of a subscriber, the key being stored in either a location within the first network (502, 504) or external to the first network (502, 504).

Abstract: Method and user equipment and network node for sending a SIP request message having alerting information associated therewith from an originating user equipment having an originating SIP-UA associated therewith to a receiving SIP-UA associated with a receiving user equipment in a SIP based communications network, including setting a condition which must be met in order for the receiving SIP-UA to be allowed to receive the alerting information, checking whether the condition has been met, and f the condition has been met, passing the alerting information on to the receiving SIP-UA.

Abstract: A user equipment (UE) engages in a packet based call between a local party associated with the UE and a remote party. The UE establishes a control plane session of the call with a node of an Internet Protocol multimedia system (IPMS), and establishes a media session of the call managed by the IPMS. The UE determines a local endpoint for terminating an additional media session at the local party, and sends a first message of the control plane session to the IPMS. The first message indicates the local endpoint and indicates that management of the additional media session by the IPMS is not required. The UE receives a second message of the control plane session from the IPMS that indicates a remote endpoint for terminating the additional media session at the remote party. The UE configures the local endpoint for transfer of media with the indicated remote endpoint.

Abstract: A first end node obtains trace information in a packet switched network. The first end node sends a request message for setting up a test call towards a second end node. The request message includes a first request for collecting trace information. The second end node sends a first response message, to the first end node, that includes a trace request and trace information. The first response message is routed between the second and first end nodes via at least a first intermediate node that adds additional trace information relating to the first intermediate node to the trace information of the first response message. The first end node receives the first response message, which includes the additional trace information added by the first intermediate node.