Abstract: An apparatus and method for selecting a security association timer between user equipment and a control entity in a communication system are disclosed. The apparatus includes a transmitter configured to transmit a registration request message to a control entity in a communication system, whereby the registration request message is configured to request registration with the control entity. The apparatus further includes a receiver configured to receive an authentication challenge including a temporary timer, whereby the temporary timer is configured to set a time duration for the apparatus to respond to the authentication challenge. The receiver is further configured to receive an acknowledgement message including a security association timeout value in response to the transmitted registration message, whereby the security association timeout value includes a set time length of a security association equal to a registration time length set for registration of the apparatus.

Abstract: A method of communication between a calling party in a first network and a called party in a second network is disclosed. The method comprises determining in the first network an address associated with the called party. The method also comprises determining, based on the address, if the called party is in a trusted network, and controlling the communication between the called party and the calling party in dependence on if the called party is in a trusted network.

Abstract: An approach is provided for refreshing keys in a communication system. An application request is transmitted to a network element configured to provide secure services. A message is received, in response to the application request, indicating refreshment of a key that is used to provide secure communications with the network element. A refreshed key is derived based on the received message.

Abstract: This invention relates to a method of communication comprising attempting to set up a session between a calling party and a called party via at least one entity; after a confirming response has been received from at least one of said called party, said calling party and said at least one entity, determining if said attempt to set up a session has failed; and preventing at least one of said calling party and said called party from being charged for said session.

Abstract: This invention relates to a method of routing for a message via an IMS system is disclosed. A message is received at an ICSCF. Address information is obtained for one of an application server, server or gateway for which said message is intended. The message is sent to said application server, server or gateway in accordance with said address information.

Abstract: A method in a communication system wherein a user (1) is arranged to register with a control entity (22) comprises sending a message from the communication system to the user (1) requesting that the user re-register with said communication network. The user is caused to re-register with said network in response to said message.

Abstract: A method comprises building a list of services available from stations associated with a network, wherein the list of services includes an indicator of a location of the station associated with each service.

Abstract: This invention relates to a method for supporting a communication session of an user equipment, by means of a communication system that includes at least one entity between the user equipment and a node with which the user equipment is arranged to establish a session, the method including the steps of establishing a session between the user equipment and the node via the at least one entity, putting the session on hold, reserving resources for the session while the session is on hold, and resuming the session and distributing charging information.

Abstract: A method of authenticating a user device includes transmitting a request, the request including a query for information, and receiving an identifier, the identifier being associated with one or more authentication mechanisms for obtaining access to emergency services.

Abstract: The invention proposes a method for controlling a network, wherein the networks offers services to registered users, the method comprising the steps of receiving (A1) a service request from network device (UE) of a user, checking whether the user is registered or not, and if the user is not registered, generating a response message including a warn information and sending (A2; B3 to B4) the response message to the network device (UE) of the user. The invention also proposes a corresponding network device. In this way, a user is informed that he has to register before he can obtain any services from the network.

Abstract: Systems and methods by which network coverage in a specific area can be exhibited to a user of a mobile node. Information stored on an information server may be used in an application which is capable of exhibiting the network coverage in a specific area. The network coverage may be based, for example, on an operating carrier, a carrier and its roaming partners or on a specific type of network. The information stored on the information server can be downloaded by a mobile node, thereby permitting to observe the coverage area for a network type(s) in which the user is interested. The coverage information may be exhibited, for example, in the form of a visual coverage map.

Abstract: The invention relates to a communication system which comprises at least one user equipment having a plurality of identities associated therewith. The user equipment has means for storing at least one of the identities. Storage means are provided for storing at least one of the plurality of identities and means for receiving identity information from the user equipment, for obtaining from the storage means at least one identity associated with the received identity information and for sending to the user equipment the at least one obtained from the storage means.

Abstract: Positioning and/or navigation of an electronic device within a building when GPS signals are unavailable is provided. The electronic device scans for available Wireless Local Area Network (WLAN) Access Points (APs) upon, e.g., entering a building. The electronic device detects a signal (e.g., beacon) from at least one available WLAN AP, whereupon the electronic device retrieves the indoor location of the available WLAN AP. The location information can be directly downloaded from the WLAN AP while in state-1 via, e.g., a Native Query Protocol which includes an extension to currently defined Native Query info elements that returns location information. Alternatively, the Media Access Control (MAC) address of the WLAN AP can be read from the beacon signal, which is then used to retrieve the location of the WLAN AP from an associated database.

Abstract: The invention relates to a communication system which comprises at least one user equipment having a plurality of identities associated therewith. The user equipment has means for storing at least one of the identities. Storage means are provided for storing at least one of the plurality of identities and means for receiving identity information from the user equipment, for obtaining from the storage means at least one identity associated with the received identity information and for sending to the user equipment the at least one obtained from the storage means.

Abstract: A document containing medical-related information is created and stored on, e.g., a mobile device. The document can then be transmitted from the mobile device to an appropriate servicing entity, such as a public safety answering point (PSAP) when an emergency call is made, allowing the PSAP to receive pertinent information about an emergency caller. Additionally, the document can be transmitted to, e.g., an appropriate near field communication (NFC) reader/receiver so that, e.g., a patient may automatically transfer information that is conventionally gathered by the patient completing a plurality of complex forms. Further still, various embodiments can enable the querying/transmitting of medical-related information over hypertext transfer protocol (HTTP) so that online questionnaires may be completed and responses received directly for users wishing to purchase medication online.

Abstract: This invention relates to a method for supporting a communication session of an user equipment, by means of a communication system that includes at least one entity between the user equipment and a node with which the user equipment is arranged to establish a session, the method including the steps of establishing a session between the user equipment and the node via the at least one entity, putting the session on hold, reserving resources for the session while the session is on hold, and resuming the session and distributing charging information.

Abstract: A method controls a network, wherein the networks offer services to registered users. The method includes the steps of receiving a service request from network device of a user, checking whether the user is registered or not, and if the user is not registered, generating a response message including a warn information and sending the response message to the network device of the user. The method can be performed on a corresponding network device. In this way, a user is informed that he has to register before he can obtain any services from the network.

Abstract: In a communication system wherein a serving controller may be configured to support a first security mechanism and at least one other security mechanism. A request for registration is sent from a user equipment to the serving controller where after it is determined in a second controller that the user equipment supports another security mechanism than the first security mechanism. The second controller may then send to the serving controller an indication that another security mechanism than the first security mechanism is used by the user equipment. The serving controller then sends a challenge in accordance with the other security mechanism to the user equipment.

Abstract: An apparatus, method and computer program product are provided for maintaining emergency calls during mobile device movement. In order to ensure that an emergency call is not lost despite movement of the mobile device, the mobile device may provide an update of its geographic location, as well as its network address, if it has changed, each time the mobile device performs a handover. In addition, in order to ensure that the mobile device maintains a connection to the same emergency call center throughout the duration of the emergency call, the mobile device may receive an address associated with the emergency call center upon initiating the emergency call. This address can thereafter be transmitted, along with the mobile device's updated location information, so that the connection to the call center associated with that address can be maintained, where possible, regardless of the location of the mobile device.

Abstract: The invention relates to a service provisioning method in a communication system. In the method information regarding a communication control entity capable of servicing a user of the communication system is received at a first entity associated with the communication system from a storage entity. Based on said information, an originating request is then signalled from the first entity to the communication control entity.