Abstract: Means and methodology for a SIP Invite receiving node to withdraw from the SIP session set-up loop by replying a redirect message to the SIP Invite sending node. The redirect message contains information for setting up alternative SIP session, said information being available in the SIP Invite receiving node. This information is needed by the SIP invite sending node for establishing an alternative SIP session as well as information needed by other nodes and applications further on in the SIP session set-up loop. The SIP Invite sending node is specially adapted to retrieve the information from the redirect message for establishing a new SIP session based on and containing the information from the redirect message. Several implementations are given for use in an IP Multimedia Subsystem of a telecommunication network.

Abstract: A method and apparatus in a packet-switched communication network for controlling Quality of Service (QoS) for a packet-switched data stream that includes a plurality of contiguous data packages. The network normally provides the data stream to users at a first QoS level. When it is determined that a receiving user is not authorized to receive the data stream at the first QoS level, the apparatus intercepts the data stream prior to receipt by the receiving user and extracts selected data packages from the data stream to reduce the QoS level for the data stream to a lower, second QoS level to match an authorization status of the receiving user. The apparatus then forwards to the receiving user, a modified data stream with the lower, second QoS level.

Abstract: A user terminal in a telecommunications network includes a circuit-switched (CS) telephony device and a packet-switched (PS) data processing device. The CS telephony device receives a CS-alert signal from the network for an incoming CS call and derives from the CS-alert signal that an associated PS signal is to be expected within a predetermined time interval. The terminal postpones generation of a call-received alarm for a user during the predetermined time interval. The PS data processing device receives the associated PS signal within the predetermined time interval, wherein the PS signal includes a request that the user terminal automatically answer the incoming CS call. In response to the request, the PS data processing device passes a control signal to the CS telephony device causing the CS telephony device to switch to an automatic answering mode and transmit a CS-answer signal to the network without input from the user.

Abstract: The present invention relates to a method of controlling real time contiguous data in a packet switched data stream comprising data packages. Controlling of said real time contiguous data is performed by retaining data packages of said packet switched data stream for disturbing contiguousness of said real time contiguous data after receiving thereof. The invention further relates to a system for controlling said real time contiguous data the use of such a system in a packet switched data network, and a real time contiguous data service provided using a method as described above.

Abstract: Induced answering method and system for CS-based telephony. A user terminal (5) for communication over a telecommunications network (3) includes at least a CS-telephony device (CSO) for processing CS-based telephony signals (CS1, CS2), the CS-based telephony signals being received and transmitted over a circuit switched bearer service. The user terminal is arranged for receiving an additional answer-related signal (PS1; CS3), the additional answer-related signal being associated with an incoming CS-alert signal (CS1) of an incoming call. Further, the user terminal is arranged for transmitting a response signal or CS-answer signal (CS2) over the circuit switched bearer service in response to information included in, or derived from, the additional answer-related signal.

Abstract: A method of and an application server (50) and user equipment (40) for providing at least one of chat and Voice over Internet Protocol, chat/VoIP, services to the mobile user equipment (40) in a mobile telecommunications network (30). The mobile user equipment (40) comprises a chat/VoIP client (41) for accessing a chat/VoIP service application (54) interfacing the mobile telecommunications network (30). The chat/VoIP service application (54) interfaces a plurality of proprietary chat/VoIP clients (51, 52, 53) for accessing a plurality of proprietary chat/VoIP communication environments (21, 22, 23) operated by a plurality of chat/VoIP service providers, for providing chat/VoIP services to the chat/VoIP client (41) of the mobile user equipment (40).

Abstract: A method of and mobile User Equipment, UE, (5) for handling media types of an Internet Protocol, IP, multimedia communication session in an IP Multimedia communication Subsystem, IMS, (2) wherein at the receipt of a session set up request message (F1) a mobile UE (5) presents media type handling options (57) based on the session set up request message (F1). After receiving media type handling instructions (58) by the mobile UE, (5) based on the presented media type handling options (57), a session accept message (F3) is transmitted by the mobile UE (5) in accordance with the media type handling instructions (58). Based on the media type handling instructions (58), media type may be routed (19) by the IMS (2) to terminal equipment (8, 9) remote from the mobile UE (5).

Abstract: Combinational networks may provide simultaneous connectivity over networks of different type between terminals. Communication sessions on different network types such as Circuit switched and Packet switched, belonging to the same user equipment can be correlated. In case a communication session on a circuit switched network is halted by a supplementary service e.g. at an event such as acceptance of Call Hold, a communication session on a correlated packet switched network should be halted as well. A user equipment that detects the event sends a halt message to the circuit switched network and a message to the packet switched network or a session state manager node. The session state manager node either forwards the halt-message to the packet switched network, or sends a halt-message to the packet switched network when the packet switched network does not notify that a halt has occurred.

Abstract: Combinational networks may provide simultaneous connectivity over networks of different type between terminals. Communication sessions on different network types such as Circuit switched and Packet switched, belonging to the same user equipment can be correlated. In case a communication session on a circuit switched network is halted by a supplementary service e.g. at an event such as acceptance of Call Hold, a communication session on a correlated packet switched network should be halted as well. A user equipment that detects the event sends a halt message to the circuit switched network and a message to the packet switched network or a session state manager node. The session state manager node either forwards the halt-message to the packet switched network, or sends a halt-message to the packet switched network when the packet switched network does not notify that a halt has occurred.

Abstract: A method, apparatus and computer program in a telecommunication network (111, 112, 121) for routing a media stream from an IMS domain to an MSC (107, 107a) associated with a mobile station in a circuit switched domain of a PLMN (109), wherein a service control node (111, 112, 121) receives a first request for routing path data for routing said media stream to a logical address associated with said mobile station (110), and wherein said logical address is converted into a physical address of the mobile station (110) and subsequently converted into a physical address of the MSC (107, 107a). A service control node (111, 112, 121) in the IMS domain obtains the MSRN for the mobile station (110). The MSRN is used to route the call as an IMS call right up to the MSC (107, 107a). The service control node (111, 112, 121) may comprise a SIP-AS, an ENUM server or a Client Gateway.

Abstract: A method of and a communications system (50) for playing a message to a calling party (1) when the calling party (1) calls a called party (2) and the called party (2) is alerted to the call. The message (30) is also played after the called party (2) disconnects (26) from the call (24). The play of the message may be put on hold when the called party (2) answers the call and the play of the message may be continued (38; 30) when the called party (2) disconnects from the call. The message may be replayed when the called party (2) disconnects from the call (24). During play of the message (30) the calling party (1) may be provided connect control (47) of the play.

Abstract: A method, apparatus and computer program in a telecommunication network (111, 112, 121) for routing a media stream from an IMS domain to an MSC (107, 107a) associated with a mobile station in a circuit switched domain of a PLMN (109), wherein a service control node (111, 112, 121) receives a first request for routing path data for routing said media stream to a logical address associated with said mobile station (110), and wherein said logical address is converted into a physical address of the mobile station (110) and subsequently converted into a physical address of the MSC (107, 107a). A service control node (111, 112, 121) in the IMS domain obtains the MSRN for the mobile station (110). The MSRN is used to route the call as an IMS call right up to the MSC (107, 107a). The service control node (111, 112, 121) may comprise a SIP-AS, an ENUM server or a Client Gateway.

Abstract: Method of and arrangement for associating voice clips with a document, the document being reviewed by at least one participant during a telephone conference set up between a convener communication set (T5, C5) and one or more participant communication sets (T1-T4, C1-C4), where the voice clips contain spoken comments by the participants. The voice clips associated with locations in a section of the document synchronized in time such that each voice clip is associated with a certain location in the section and contains speech that was spoken by the participant at the 10 time that the image of the section was shown to the participant.

Abstract: A method of managing location information of an Unlicensed Mobile Access terminal in a Global System for Mobile Communications network. An IP address of the terminal is received at a Generic Access Network Controller. The Generic Access Network Controller then sends a query to a Connectivity Session Location and Repository Function associated with the IP network or IP sub network through which the UMA terminal has gained IP connectivity for the purpose of attaching to a Mobile Switching Centre or Serving General Packet Radio System Service Node. The Connectivity Session Location and Repository Function sends location information to the Generic Access Network Controller, which then transmits the location information to a Mobile Switching Centre or a Serving General Packet Radio System Service Node.

Abstract: A method of and a system for establishing presence of a mobile station in at least one dedicated service area of a mobile telecommunications system providing service to a plurality of geographically spread service areas. A mobile station is triggered to provide location information relating to the presence of the mobile station at a location receiving service from a service area comprising the or each dedicated service area. Presence of the mobile station in the or each dedicated service area is established by comparing the location information provided by the mobile station and stored location information relating to the or each dedicated service area. If present in a dedicated service area, the mobile station automatically receives dedicated services to which the mobile unit is entitled to. Receipt of dedicated services is automatically indicated to a user of the mobile station.

Abstract: A system and method for simultaneously supporting IMS signaling and Circuit Switched signaling during a call between a calling user terminal in an IP Multi media System (IMS) and a called user terminal in a Circuit Switched CS network. A first IP address is determined by the calling user terminal, the calling user terminal initiates the call using IMS signaling towards the called user terminal, the IMS signaling comprising the first IP address. The called user terminal then initiates a CS connection towards an IP Access Converter using CS signaling and comprising the first IP address. The IP Access Converter allocates a second IP address (IP2) to be used for data transfer with the calling user terminal. The IP Access Converter establishes the CS connection by providing said second IP address to the called user terminal using CS signaling and the called user terminal establishes the call, providing said second IP address to said calling user terminal using IMS signaling.

Abstract: Induced answering method and system for CS-based telephony. A user terminal (5) for communication over a telecommunications network (3) includes at least a CS-telephony device (CSO) for processing CS-based telephony signals (CS1, CS2), the CS-based telephony signals being received and transmitted over a circuit switched bearer service. The user terminal is arranged for receiving an additional answer-related signal (PS1; CS3), the additional answer-related signal being associated with an incoming CS-alert signal (CS1) of an incoming call. Further, the user terminal is arranged for transmitting a response signal or CS-answer signal (CS2) over the circuit switched bearer service in response to information included in, or derived from, the additional answer-related signal.

Abstract: A method of and a communications system for providing a calling party (1) information (27) of a message (18) that is played to the calling party (1) in a communications system, when the calling party (1) calls (10) a called party (2) and the called party (2) is being alerted (13) of the call and/or after the called party has disconnected from the call. The information (27) is provided electronically on request (24) of the calling party (1). The calling party (1) may be prompted (28) to indicate (24) whether to receive the information (27). The prompt (28) may be provided while the message (18) is playing. The information (27) to be provided may include downloading of the message (18) or part thereof or content comparable with the message (18), such as an audio clip, a video clip or as a ring tone to be used by the calling party (1).

Abstract: A method of recording at least a part of a conversation between a plurality of conversation parties, wherein said conversation is enabled by establishing a call through a circuit switched telecommunications network. Said at least one part of said conversation is recorded in a data file using a recording system which is located in the network at a central location, and said recording is controlled by control signals provided to said recording system through a packet switched telecommunications network by at least one of said conversation parties. Said control signals identify said call for associating said control signals with said conversation. By providing the control through the packet network no DTMF tones need to interrupt the ongoing conversation to start and stop recording using access codes which also means that no monitoring circuit need continually be inserted in the voice path. Thus control of the recording is provided using an IP based interface rather than via the circuit switched path.

Abstract: Method and network unit for setting up a connection in a second network (16) from a first user terminal (21) to a second user terminal (22), when a connection in a first network (15) is present between the first user terminal (21) and at least the second user terminal (22). The connection in the second network (16) is initiated using a context dependent second network address, the context dependent second network address identifying a combinational service in the second network (16). The combinational service comprises retrieving the second network address of the second terminal (22) using a common part (17) of the first and second network (15, 16), and completing the set up of the second connection using the second network address of the second terminal (22).