Abstract: A method of identifying at least two proximate devices (1, 2) comprises the steps of: recording, in each device, an audio signal (AS) so as to produce respective audio samples, detecting, in each device, a sensory identifier serving as a trigger (TR), comparing the audio samples during a common interval (I) defined relative to the trigger (TR), and deciding that the event is common to the devices only if the respective audio samples are sufficiently similar. The common interval (I) starts prior to the trigger (TR) and preferably also ends prior to the trigger.

Abstract: A method of identifying proximate mobile devices, the method comprising the steps of: providing a sensory identifier (ID), a first mobile device (1) detecting the sensory identifier (ID), a second mobile device (2) detecting the sensory identifier (ID), the first mobile device (1) sending a request message associated with the sensory identifier (ID) to the second mobile device (2), and the second mobile device (2) sending an acknowledgement message to the first mobile device (1) so as to establish mutual identification. The sensory identifier (ID) may comprise a visual identifier, such as a bar code, and/or an audio identifier, such as a sound signal. An audio identifier may be produced by tapping the mobile devices together.

Abstract: A system (20) is designed for identifying devices (1, 2, . . . ) which are arranged for detecting a sensory identifier and transmitting request messages comprising representations of the detected sensory identifier. The system comprises at least one correlation relation server (e.g. 5C) for correlating representations received from the devices (1, 2) so as to match two or more of those devices, preferably when the devices (1, 2) are in each other's proximity. The system further comprises at least one proxy server (e.g. 8X) for routing a request message from a device (1, 2) to at least one correlation server (e.g. 5C), the routing being dependent on said representations or other information contained in the request messages.

Abstract: A method and a system for dynamically relaying RTCP messages associated with one or more RTP streams is described. Each RTP stream is associated with a media session and with a sender node (MF) and one or more receiver nodes (UE). The method comprises the steps of: assigning at least one control node (MSAS) to at least one RTP stream; providing (4) a receiver node associated with said RTP stream with the address of said control node, said address being provided to said receiver node in a session control protocol message or an HTTP message and being different than the address of the associated sender node; and, said receiver node sending (8) receiver RTCP messages to said control node, using said address comprised in said session control protocol message or HTTP message.

Abstract: A system (40) for identifying proximate devices (1, 2) comprises at least one correlation server (5) for correlating data received from the devices so as to match two or more of the devices and at least one application server (6) for carrying out an application involving matched devices. The at least one correlation server (5) and the at least one application server (6) are distinct servers so as to provide a greater flexibility and scalability. The devices (1, 2) may be mobile consumer devices.

Abstract: A method and system for inter-destination synchronization of at least a first and a second stream is described, wherein the second stream is the output stream of a media stream modification unit using the first stream as an input stream. The method comprises the steps of: providing first arrival time information of a packet in the first stream arriving at a first synchronization point and second arrival time information of a packet in the second stream arriving at a second synchronization point; providing synchronization correlation information on the synchronicity relationship between said input stream and said output stream; and, calculating delay information on the basis of the first and second arrival time information and the synchronization correlation information.

Abstract: A method and a system for managing associated sessions in a network is described, wherein the network comprises a network element configured for managing associated sessions between the network and user equipment. The method comprises the steps of providing a composition session identifier for associating sessions in a network; exchanging the composition session identifier between a user equipment and the network element; and associating two or more sessions with the composition session identifier by exchanging the composition session identifier.

Abstract: Method for managing an electronic group comprising two or more group members (2), all members, using, at least for setting up such a new group, mobile terminals (1) which are capable to mutually exchange, via a short-range communication link (3), relevant terminal, user and/or group codes. During a group constituting session in which the members are physically in each other's vicinity, i.e. within the reach of the short-range link, at least one member of the intended group, acts as a group representative (2*) collects, via the short-range link (3), from all relevant members, their user or terminal identifiers, called member identifiers (M1, M2, M3, etc.). A group token (T) is constituted by the group representative (2*) or his/her terminal, including a group identifier (A), the latter being transmitted, via the short-range link, to all members.

Abstract: Method for shared secret verification e.g. to be applied in secure data exchange, in which at least two parties, hereinafter indicated as Alice and Bob, each have a secret while their challenge is to find out whether they share the same secret or not, however, without disclosing the secret itself to each other or to any third party. The method comprises the following steps. In step 1, Alice picks a random number RA, encrypts it using Bob's public key PUB, adds the value of her secret SA, and sends the result K to Bob. In step 2 Bob receives K, subtracts his secret SB, and performs a decryption using his own private key PRB. In step 3 Bob performs the one-way function H on L and sends the result M to Alice. In step 4 Alice receives M, takes her original random number RA, performs the same one-way function H and verifies whether the result equals the received M. In step 5 Alice sends her original random number RA to Bob.

Abstract: A method is described for transmitting a multimedia stream from a first end-terminal to a second end-terminal. The first and second end-terminal are connected to at least one gateway for enabling the multimedia stream to be transmitted from the first end-terminal to the second end-terminal. The method comprising the steps of: the first end-terminal inviting the gateway to set up a first multimedia session between the first end-terminal and the gateway, the first multimedia session being controlled by a first protocol; the gateway notifying—in response to the invitation—the second end-terminal of the pending invitation; the second end-terminal setting up—in response to the notification—a second multimedia session between the second end-terminal and the gateway, the second multimedia session being controlled by a second protocol; the gateway setting up—in response to the invitation—the first multimedia session; and transmitting a multimedia stream from the first end-terminal to the second end-terminal.

Abstract: A method is described for synchronizing the transmission of a stream to a group of end-terminals. The method is used in a system comprising a station transmitting a packetized stream over a network to at least a first and second network node. Each network node comprises a variable delay unit and each network node is connected to one or more end-terminals. In the method the synchronization unit receives arrival time information of a packet in the broadcast stream at the first and second network node. Delay information is calculated for the first and second network node on the basis of the arrival time information of the packet. Further, the delay information is transmitted to the first and second network node so that the variable delay unit in the first and second network node is able to transmit the broadcast stream to the first and second end-terminal in a substantially synchronized way.

Abstract: A Method is described for synchronizing the output of terminals. The method according to the invention may be used in a system comprising a station, which transmits a packetized stream to at least a first and second terminal. Each terminal comprises a variable delay unit and each terminal is connected through a low-delay communication channel to at least one synchronization unit for calculating delay information. Further, each terminal is capable of determining media reference information of a received media unit from the stream.

Abstract: A system is described for managing service interactions in a combined service. The system comprises a first service delivery means for providing a first service, a second service delivery means for providing a second service, a combined service delivery means for providing a combined service capable of associating the first service to one of the second service. The combined service is implemented using a combined state model, which comprises a predetermined number of combined states formed on the basis of the states of the first and the second service and armed detection points for detecting predetermined transitions between the combined states. The combined service delivery means further comprises a combined state manager adapted to transmit a control signal to the first and/or the second service delivery means for inducing a predetermined state transition in the respective first and/or the second service in response to the activation of an armed detection point.

Abstract: A method of identifying proximate mobile devices, the method comprising the steps of: providing a sensory identifier (ID), a first mobile device (1) detecting the sensory identifier (ID), a second mobile device (2) detecting the sensory identifier (ID), the first mobile device (1) sending a request message associated with the sensory identifier (ID) to the second mobile device (2), and the second mobile device (2) sending an acknowledgement message to the first mobile device (1) so as to establish mutual identification. The sensory identifier (ID) may comprise a visual identifier, such as a bar code, and/or an audio identifier, such as a sound signal. An audio identifier may be produced by tapping the mobile devices together.

Abstract: A method of generating a stream comprising synchronized interactive content is described. The method comprises the steps of: transmitting a first stream from a studio to a terminal or a terminal system of a first user and to a buffer; transmitting in response to the first stream a second stream to a mixer connected to the buffer, the second stream comprising content generated in reaction to the content of the first stream; providing the mixer with a temporal relation between the packets in the first and second stream; generating a first output stream comprising a substantially synchronized content by mixing packets in second stream with packets of the buffered first stream on the basis of the temporal relation.

Abstract: The invention relates to a method of determining presence information about at least one presentity. In particular, the invention is concerned with a method of determining presence information about at least one presentity, the method comprising: accessing an audio signal from a terminal associated with the at least one presentity, analysing the audio signal to determine information regarding the presence of the at least one presentity, providing the presence information as a presence service to a third party. The invention further relates to a presence service system, a user terminal comprising means operable to perform the method of the invention, a communications network comprising a terminal, the presence service system being operable to perform the method of the invention and a computer readable storage medium storing a program which when run on a computer controls the computer to perform the method of the invention.

Abstract: A method for a first mobile device to identify a second mobile device. The method comprises a) detecting at least one sensory identifier (ID1), and b) determining a stamp for each detected sensory identifier (ID1). The method further comprises c) searching for a second mobile device 2 via a first communication channel and d) opening a first communication channel. Furthermore e) exchanging parts of the at least one stamp with the second mobile device 2 and f) verifying received parts of the at least one stamp. Finally the method comprises g) opening a second communication channel between the first mobile device 1 and the second mobile device 2 if a predetermined amount of the received parts of the at least one stamp equal the corresponding parts of the at least one stamp as determined by the first mobile device 1.

Abstract: It is disclosed that a lamppost (2) can comprise a low pass filter (17) for preventing the creation of undesirable electromagnetic fields. The low pass filter passes a first signal (11) and prevents a second signal (12) to enter further into the lamppost (2). The first signal (11) can be a power signal that is transported via a powerline (10) to lampposts (1, 2). The second signal (12) can be a telecommunication signal that is transported via the powerline (10) to or form telecommunication equipment (7) that is present in one or more lampposts (1). The low pass filter (17) can be comprised by a second fuse (8?). There also can be a switch (18) comprised by the second fuse (8?) via which switch it is possible to activate and deactivate the low pass filter (17).

Abstract: Method, system, converter and switch for communication in asynchronous transmission mode (ATM) between a source end station (13) and a destination end station (14) by means of information cells and data cells following the information cells, the information cells representing a signalling message containing an information element (IE) which contains an indication of a requested kind of traffic contract (ATC) for, in accordance therewith, processing the data cells.

Abstract: An optical interconnection system for the realization of network elements in optical networks comprises a set of functional optical circuit modules (15) and an interconnection panel (10). The panel is provided with a row of module positions (13.1, 13.2, 14.1, . . . , 14.N) suitable for plugging in circuit modules (15), and with a pair of optical (1:N) splitters (16,17), each pair of corresponding ports of which (16A/17A, 16.1/17.1, . . . , 16.N/17.N) are interconnectable to a pair of a number of pairs of connection ports (11, 12.1, . . . , 12.N) through a module position and a circuit module plugged into that position. The set of circuit modules comprises circuit modules with functions for signal interconnection, for signal transport direction reversal, and for signal manipulation. A number of panels can be coupled together for purposes of, inter alia, expansion and/or protection.