Abstract: A method of providing services in a communication system. The method comprises: establishing a call instance from a caller terminal to a service provider terminal in the communication system; transmitting from the service provider terminal a service proposal in the form of an electronic document via the established call instance to the caller terminal; selectively accepting or rejecting the service proposal at the caller terminal; and in the case of acceptance of the service proposal, transmitting a request for money to a backend server in the communication system from the caller terminal; transmitting electronic cash tokens from the backend server to the caller terminal in response to the request to receive money; forwarding the electronic cash tokens from the caller terminal to the service provider terminal, whereafter the service provider provides services in accordance with the service proposal.

Abstract: A method of controlling a connection between a user terminal and an access node connected to a communication network is provided. The user terminal establishes a data connection with the access node, periodically generates a message at predetermined intervals and transmits the periodic message to at least one network node via the access node over the communication network. Responses to the periodic messages are received from the at least one network node. The responses are analyzed to determine whether to terminate the connection to the access node, and in the case that the connection to the access node should be terminated, a disconnect message is transmitted to the access node from the user terminal.

Abstract: A method of providing services in a communication system. The method comprises: establishing a call instance from a caller terminal to a service provider terminal in the communication system; transmitting from the service provider terminal a service proposal in the form of an electronic document via the established call instance to the caller terminal; selectively accepting or rejecting the service proposal at the caller terminal; and in the case of acceptance of the service proposal, transmitting a request for money to a backend server in the communication system from the caller terminal; transmitting electronic cash tokens from the backend server to the caller terminal in response to the request to receive money; forwarding the electronic cash tokens from the caller terminal to the service provider terminal, whereafter the service provider provides services in accordance with the service proposal.

Abstract: A method of controlling a connection between a user terminal and an access node connected to a communication network is provided. The user terminal establishes a data connection with the access node, periodically generates a message at predetermined intervals and transmits the periodic message to at least one network node via the access node over the communication network. Responses to the periodic messages are received from the at least one network node. The responses are analysed to determine whether to terminate the connection to the access node, and in the case that the connection to the access node should be terminated, a disconnect message is transmitted to the access node from the user terminal.

Abstract: A method of transmitting a communication event from a calling entity to a called entity located in a communication system comprising a first network and a second network, said method comprising determining a first identity associated with the calling entity and a first and second identity associated with the called entity, wherein the first identities are recognizable in the first network and the second identity is recognizable in the second network; associating at a first node located in the second network the first identities with the second identity; establishing a connection between the calling entity and a second node; wherein the connection with second node is established using the first identity associated with the called entity; querying the first node with the first identity associated with the called entity and the first identity associated with the calling entity to determine the second identity associated with the called entity; and transmitting the communication event to the called entity using t

Abstract: A method of controlling a connection between a user terminal and an access node connected to a communication network is provided. The user terminal establishes a data connection with the access node, periodically generates a message at predetermined intervals and transmits the periodic message to at least one network node via the access node over the communication network. Responses to the periodic messages are received from the at least one network node. The responses are analysed to determine whether to terminate the connection to the access node, and in the case that the connection to the access node should be terminated, a disconnect message is transmitted to the access node from the user terminal.

Abstract: A user of a first packet-based communication network is authorized to access a second packet-based communication network. In at least some embodiments, an authorization request is received from a user terminal of the user at a first network element of the first packet-based communication network, the authorization request comprising a first user identity. Responsive to the authorization request, a request is transmitted to create a second user identity from the first network element to a second network element of the second packet-based communication network. The second network element creates the second user identity for use in the second packet-based communication network, the second user identity being derivable from the first user identity according to a predetermined rule. The second user identity in the second packet-based communication network is stored for use with subsequent communication events over the second packet-based communication network.

Abstract: A data store associates a first identity recognizable in a first network with a second identity recognizable in a second network for both a user and a calling entity. Both identities for the calling entity are provided to the receiving device via the second network. A node receives the communication event with the second identity for the calling entity, the communication event being addressed with the second identity of the user. The data store is queried with the second identities of the calling entity and user to determine the first identities of the calling entity and user. The receiving device receives the communication event with the first identity for the calling entity via the first network, the communication event being addressed with the first identity of the user. The receiving device determines the second identity of the calling entity using the first identity of the calling entity.

Abstract: A user of a first packet-based communication network is authorised to access a second packet-based communication network. In at least some embodiments, an authorisation request is received from a user terminal of the user at a first network element of the first packet-based communication network, the authorisation request comprising a first user identity. Responsive to the authorisation request, a request is transmitted to create a second user identity from the first network element to a second network element of the second packet-based communication network. The second network element creates the second user identity for use in the second packet-based communication network, the second user identity being derivable from the first user identity according to a predetermined rule. The second user identity in the second packet-based communication network is stored for use with subsequent communication events over the second packet-based communication network.

Abstract: Methods and systems of authorising a user of a first packet-based communication network to access a second packet-based communication network are disclosed. A call setup request is received from a user terminal of the user at a first network element of the first packet-based communication network, the authorisation request comprising a first user identity. Responsive to the call setup request, a request is transmitted to create a second user identity from the first network element to a second network element of the second packet-based communication network. The second network element creates the second user identity for use in the second packet-based communication network. The second user identity is derivable from the first user identity according to a predetermined rule. The second user identity is stored in the second packet-based communication network for use with establishing a call associated with the call setup request over the second packet-based communication network.

Abstract: A method of transmitting a communication event from a calling entity to a called entity located in a communication network comprising a first network and a second network, said method comprising determining a first identity associated with the called entity, wherein the first identity is recognizable in the first network; allocating a calling identity to the called entity, wherein the allocated identity is recognizable in the second network; associating at a first node located in the first network the first identity with the calling identity; providing the calling identity to the calling entity; establishing a connection with a second network node located in the second network; wherein the connection with the second network node is established using the calling identity, querying the first node with the calling identity associated with the called entity to determine the first identity associated with the called entity; transmitting the communication event to the called entity using the first identity associat

Abstract: A user terminal connected to a communication network executes a communication client. The user terminal displays a list of contacts associated with a user of the client, and retrieves a message from the communication network, wherein the message is related to a further user represented by one of the contacts displayed in the list of contacts. The message includes a reference to media accessible by the communication network. The reference may be extracted from the message. A visual representation of the media may be displayed in association with one of the contacts, such that, responsive to the user actuating the visual representation, the client establishes communication with storage means using the reference and displays the media to the user.

Abstract: A method of authorising a user of a first packet-based communication network to access a second packet-based communication network. The method comprises: receiving an authorization request from a user terminal of the user at a first network element of the first packet-based communication network, the authorization request comprising a first user identity; responsive to the authorization request, transmitting a request to create a second user identity from the first network element to a second network element of the second packet-based communication network; the second network element creating the second user identity for use in the second packet-based communication network, the second user identity being derivable from the first user identity according to a predetermined rule; and storing the second user identity in the second packet-based communication network for use with subsequent communication events over the second packet-based communication network.

Abstract: A method of transmitting a communication event from a calling entity to a called entity located in a communication system comprising a first network and a second network, said method comprising determining a first identity associated with the calling entity and a first and second identity associated with the called entity, wherein the first identities are recognizable in the first network and the second identity is recognizable in the second network; associating at a first node located in the second network the first identities with the second identity; establishing a connection between the calling entity and a second node; wherein the connection with second node is established using the first identity associated with the called entity; querying the first node with the first identity associated with the called entity and the first identity associated with the calling entity to determine the second identity associated with the called entity; and transmitting the communication event to the called entity using t

Abstract: A method of establishing communication between a first and second terminal, the first terminal being arranged to communicate with a first communication system and the second terminal being arranged to communicate with a second communication system.

Abstract: A method of authenticating a user terminal with an access node providing restricted access to a communication network is provided. The method comprises the user terminal transmitting a request for an authentication token to a trusted network node via an unrestricted channel on the access node, the request comprising a network identity for a user of the user terminal. The network node verifies the identity of the user using the network identity, generates an authentication token and transmits the authentication token to the user terminal via the unrestricted channel. The user terminal derives login information from the authentication token and provides the login information to the access node. The access node authenticates the login information and removes the restricted access such that the communication network can be accessed by the user terminal.

Abstract: A method of transmitting a communication event from a calling entity to a called entity located in a communication system comprising a first network and a second network, said method comprising determining a first identity associated with the calling entity and a first and second identity associated with the called entity, wherein the first identities are recognizable in the first network and the second identity is recognizable in the second network; associating at a first node located in the second network the first identities with the second identity; establishing a connection between the calling entity and a second node; wherein the connection with second node is established using the first identity associated with the called entity; querying the first node with the first identity associated with the called entity and the first identity associated with the calling entity to determine the second identity associated with the called entity; and transmitting the communication event to the called entity using t