Abstract: In a communication system at least one operational criterion is applied for a group of one or more users. On the basis of such operational criterion, one or more interface rules are generated. An interface rule includes information that identifies an application that is capable of utilizing two or more communication interfaces, and also a function for determining a communication interface to be applied by that application in communications of the group of one or more users. A profile that includes interface rules generated on the basis of operational criteria to be applied for a user is created and stored in a user terminal of the user. Use of applications can be matched with operational requirements posed on or by the user, without substantial need to change the applications and/or the configuration of the terminal due to the matching.

Abstract: A method for managing a data stream in a communication system. One or more user stations and switching and management infrastructure are configured with a function that maps packet data protocol addresses of data transmissions to defined service access point identifiers. A packet data context for data transmissions of a packet data service is created by associating a packet data protocol address with a service access point identifier used in an interface between one or more user stations and the switching and management structure. A function is used for determining independently in the one or more user stations or the switching and management infrastructure the service access point identifiers for data transmissions of the packet data service.

Abstract: A method in a communication system. The mobile station is provided with two or more separate subscriber modules having separate authentication identities. The modules are authenticated and a session key is established between these subscriber modules using the system as a trusted party. The invention improves the ability of the communication system to adjust to the varying operational conditions of the users, and user organizations.

Abstract: Determining an operation mode of a terminal, and recording communications data of the terminal, on the basis of the determined operation mode.

Abstract: A method for managing a data stream in a communication system. One or more user stations and switching and management infrastructure are configured with a function that maps packet data protocol addresses of data transmissions to defined service access point identifiers. A packet data context for data transmissions of a packet data service is created by associating a packet data protocol address with a service access point identifier used in an interface between one or more user stations and the switching and management structure. A function is used for determining independently in the one or more user stations or the switching and management infrastructure the service access point identifiers for data transmissions of the packet data service.

Abstract: A communication system includes a plurality of channels, a first service that utilizes at least a first channel for transmission, and a second service that utilizes at least a second channel for transmission. Operating means are provided for operating the first service in connection with the second service, so that the first service can utilize the second channel. Adjusting means are provided for adjusting the utilization of the second channel by the second service at least during the connected operation of the first and the second service. The utilization of a channel whose capacity is essentially dynamically adjustable is facilitated by a service that, according to the pre-defined protocols, is directed to use a channel whose capacity is more statically adjustable.

Abstract: In a communication system at least one operational criterion is applied for a group of one or more users. On the basis of such operational criterion, one or more interface rules are generated. An interface rule includes information that identifies an application that is capable of utilizing two or more communication interfaces, and also a function for determining a communication interface to be applied by that application in communications of the group of one or more users. A profile that includes interface rules generated on the basis of operational criteria to be applied for a user is created and stored in a user terminal of the user. Use of applications can be matched with operational requirements posed on or by the user, without substantial need to change the applications and/or the configuration of the terminal due to the matching.

Abstract: A switching and management infrastructure of a mobile communications network is connected to a gateway node by a standard interface initially defined to be used in an other packet-mode communication network, in order to provide a packet-mode connection to an external communication network. As a consequence, the protocols and signaling messages already defined and developed for this standard interface can be used for activating, deactivating and updating a logical packet data context between the infrastructure and the gateway packet node as well as to tunnel data packets therebetween. Also standard gateway packet node and all the existing interworking function thereof can be used for providing packet data services and interworking for the mobile network. Thereby the need for developing and defining a special packet data routing and interworking for the mobile network will be avoided or minimized.

Abstract: A method and an arrangement maintain end-to-end synchronization on a telecommunications connection transmitting data in frames substantially in real time and using synchronized end-to-end encryption, wherein at least a part of the telecommunications connection is a packet-switched connection, in which case the reproduction delay of the data to be transmitted can be increased by adding one or more extra frames to the frame string being transmitted, wherein the arrangement defines, based on the number of received frames, an initialization vector value corresponding to a frame received at the receiving end of the telecommunications connection and used in decrypting the frame, adjusts the reproduction delay to mark the frame to be added to increase the reproduction delay as an extra frame, and defines the initialization vector value to count only the frames not marked as extra frames in the number of received frames.

Abstract: A method of activating a packet data protocol context for a roaming terminal in a telecommunication system including a home network, a gateway support node to external packet networks, the node being used in the home network, at least one terminal and a visited network. When the terminal requests for packet data protocol context activation in the visited network, the visited network defines the gateway support node address on the basis of the network identifier and a subscriber identifier transmitted by the terminal. On the basis of the defined address, a request for packet data protocol context activation is transmitted from the visited network to the gateway support node and the activation of the packet data protocol context is finished.

Abstract: A radio system comprising a switching and management infrastructure arranged to deliver voice and data between a plurality of communicating parties, and a mobile station. Said radio system comprises a multiplicity of traffic channels, each traffic channel being associated with a unique coding scheme. The switching and management infrastructure is arranged to receive a plurality of paging messages from a plurality of communicating parties, and to combine the paging messages received during a pre-defined time period into a paging frame comprising a multiplicity of address data blocks for identifying the mobile station(s) for which the paging frame comprises a paging message. At least one of the traffic channels of the radio system is dedicated to delivery of downlink paging messages, and associated with a coding scheme that comprises at least one error protection algorithm.

Abstract: The invention concerns a system for transmitting information in a digital radio network system (12) between at least two modes of operation, which may be—a direct mode operation (DMO) between two terminal devices (10.1, 10.2) operating independently of the physical radio network system (21) and—a trunked mode operation (TMO) supporting distribution of network resources and operating in the physical radio network system (21). The transmission takes place with the aid of a special gateway unit (22), wherein the gateway unit (22)—listens to each or to a chosen mode of operation (DMO, TMO),—receives the transmission occurring in one mode of operation (TMO, DMO), and—transmits the received transmission to the other mode of operation (DMO, TMO). The gateway unit (22) is formed of two terminal devices (12.1, 12.2) supporting each mode of operation, and whose data transfer interface (23.3*, 23.