Abstract: A method for providing a session invitation protocol (SIP) session between a first and a second entity. An SIP session is established between the first and second entity. At least one media stream is transmitted from the first entity to the second entity. At least one of transmission, storage and play back of the at least one media stream is controlled in the SIP session at the first and/or second entity.

Abstract: There is disclosed an interface block for providing application access to the underlying protocol engine at several different layers. These layers are preferably the application core layer, the transaction layer, and the transport layer.

Abstract: An improved application programming interface (API) as described can control media resources in numerous Internet multimedia applications. The API may be independent of the application itself and the media resources underneath. The API may be referred to as a multimedia subsystem (MSS) interface.

Abstract: A method for compressing a signalling message in a communication system. The method comprising the steps of: receiving a part of the signalling message; detecting in a memory a copy of the part of the signalling message; comparing the length of the detected part against a stored length value; and dependent on the output of the comparison step performing a step of storing the detected part of the signalling message in the memory.

Abstract: The invention relates to a method for managing Quality of Service (QoS) in a packet network (10). The method comprises feeding a predetermined information flow into the packet network. (10) for measurement purposes and measuring the characteristics of said information flow by means of a continual measurement for producing QoS information. Said Qos information is used to control communications traffic in the packet network (10) in order to manage the Quality of Service (QoS) of the packet network (10). The invention further relates to a system for managing Quality of Service (QoS) in the packet network (10).

Abstract: A method for providing a session invitation protocol (SIP) session between a first and a second entity. An SIP session is established between the first and second entity. At least one media stream is transmitted from the first entity to the second entity. At least one of transmission, storage and play back of the at least one media stream is controlled in the SIP session at the first and/or second entity.

Abstract: A method for providing a session invitation protocol (SIP) session between a first and a second entity. An SIP session is established between the first and second entity. At least one media stream is transmitted from the first entity to the second entity. At least one of transmission, storage and play back of the at least one media stream, is controlled in the SIP session at the first and/or second entity.

Abstract: A system and method for conveying content-specific characteristics related to terminal capabilities and user preferences, and adapting content for particular terminals in response to the conveyed information. A content type or other message characteristic that is recognizable by the terminal is identified, as are operational confines of the terminal by which the content type is to comply. The content type is associated with the operational confines of the terminal. The content type and associated operational confines are provided to the network server for use by the network server in delivering messages to the terminal as dictated by the operational confines.

Abstract: A method for decompressing a signalling message in a communications device in a communication system comprising the steps of receiving a virtual machine bytecode block for carrying out decompression on the signalling message; detecting in at least one part of the virtual machine bytecode block at least one predefined code block, matching the virtual machine bytecode block comprising at least one detected code blocks against a bytecode reference block comprising a reference to at least one instruction set; selecting the at least one instruction set on the basis on the matching step; and performing the selected at least one instruction set.

Abstract: A method for compressing a signalling message in a compressor in a communication system. The compressor comprising a compression memory, wherein the compression memory comprises a first memory in a virtual machine and a second memory external to the virtual machine. The method comprising the steps of: receiving a part of the signalling message; searching the second memory for a copy of the received part of the signalling message; and determining a reference to the received part of the signalling message on the basis of the searching step; outputting the reference as a part of the compressed signalling message representing the received part of the signalling message.

Abstract: A method, device, system, and a computer program product where compressed control and user-plane messages are multiplexed. The multiplexing of such messages involves distinguishing between control messages and user-plane messages using an identifier accompanying the control messages. The identifier signals an intermediate relay that a particular message is a control message and should be decompressed and processed.

Abstract: The object of the invention is a method for emulating the two-way information flow of a real application in a system, which comprises a first network element (101) and a second network element (102), as well as a packet network (103) between said first network element and said second network element. The method comprises transmitting a set of packets from the first network element (101) through the packet network (103) to the second network element (102). At the second network element, at least part of the transmitted packets are received. In a return transmission, a packet arrived at the second network element is transmitted back to the first network element only after a selected delay from the receiving of the packet at the second network element. The object of the invention is also a system, a network element and a computer program product implementing the method.

Abstract: A method for decompressing a signalling message in a communications device in a communication system comprising the steps of receiving a virtual machine bytecode block for carrying out decompression on the signalling message; detecting in at least one part of the virtual machine bytecode block at least one predefined code block, matching the virtual machine bytecode block comprising at least one detected code blocks against a bytecode reference block comprising a reference to at least one instruction set; selecting the at least one instruction set on the basis on the matching step; and performing the selected at least one instruction set.

Abstract: A method for compressing a signalling message in a communication system. The method comprising the steps of: receiving a part of the signalling message; detecting in a memory a copy of the part of the signalling message; comparing the length of the detected part against a stored length value; and dependent on the output of the comparison step performing a step of storing the detected part of the signalling message in the memory.

Abstract: A method for compressing a signalling message in a compressor in a communication system. The compressor comprising a compression memory, wherein the compression memory comprises a first memory in a virtual machine and a second memory external to the virtual machine. The method comprising the steps of: receiving a part of the signalling message; searching the second memory for a copy of the received part of the signalling message; and determining a reference to the received part of the signalling message on the basis of the searching step; outputting the reference as a part of the compressed signalling message representing the received part of the signalling message.

Abstract: There is disclosed an interface block for providing application access to the underlying protocol engine at several different layers. These layers are preferably the application core layer, the transaction layer, and the transport layer.

Abstract: The present invention relates to the exchange of images and image related data between at least two end points 10, 11, 12, 13, in which exchange at least one wireless terminal 10, 11, 12 is a participating end point. The invention is based on the insight to use the Session Initiation Protocol as an upper layer protocol to enable usage of a client-server protocol that handles images, such that efficient transfer of image related data between a client 10, 11, 12 and a server 10, 11, 12, 13 is achieved. An embodiment of the invention is based on the further insight to use the Session Initiation Protocol as an upper layer protocol to enable usage of the JPIP protocol, which latter is a client-server protocol for handling images, such that efficient transfer of image related data between a client and a server is achieved.

Abstract: A method in a communication system, the system comprising a first entity maintaining registration information from a plurality of users and a second entity maintaining information associated with said plurality of users, wherein said second entity information is dependent on the registration information. The method comprises sending a subscribe message for an event from the second entity to the first entity, wherein the event is a change in the registration information of at least one of the plurality of users at the first entity; receiving at the first entity a register message from at least one user, said message changing the registration information of said at least one user; sending a notification from the first entity to the second entity in response to the register message, wherein the notification includes information associated with said at least one user.

Abstract: A method, device, system, and a computer program product where compressed control and user-plane messages are multiplexed. The multiplexing of such messages involves distinguishing between control messages and user-plane messages using an identifier accompanying the control messages. The identifier signals an intermediate relay that a particular message is a control message and should be decompressed and processed.

Abstract: There is described an improved application programming interface (API) to control media resources in numerous Internet multimedia applications. The API is independent of the application itself and the media resources underneath. For the purposes of description, the API is called a multimedia subsystem (MSS) interface.