Abstract: The present invention relates to a mobile system comprising a mobile network having a mobile services switching center (MSC, MSCA) for switching connections in the mobile network, and at least one subscriber database server (CSE) for maintaining data on the subscribers of the mobile network. The mobile services switching center (MSC, MSCA) comprises means for querying for and receiving subscriber data from the subscriber database server (CSE) wherein subscriber data are maintained in www page format, and the subscriber database server (CSE) comprises at least one www page for each subscriber in the mobile network, in which page the subscriber's subscriber data are stored, the search address of the www page being created based on the subscriber's identity.

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 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: 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: The invention relates to a method for supporting group communication between group members served by two or more controlling network elements in a communication network. The first subscriber (MS—1) in the group requests a speech item in a group call from a first controlling network element (DXT_C) that (DXT_C) transmits the speech item request to all other controlling network elements (DXT_A, DXT_B) serving the members of the group. The other controlling network elements accept or reject the speech item request depending on their local speech item request situation in the group and notify the first controlling network element at least about the rejection. The first controlling network element grants the speech item only if both its own speech item request situation and the other controlling network elements allow the speech item.

Abstract: The invention relates to a method for supporting group communication between group members served by two or more controlling network elements in a communication network. The first subscriber (MS—1) in the group requests a speech item in a group call from a first controlling network element (DXT_C) that (DXT_C) transmits the speech item request to all other controlling network elements (DXT_A, DXT_B) serving the members of the group. The other controlling network elements accept or reject the speech item request depending on their local speech item request situation in the group and notify the first controlling network element at least about the rejection. The first controlling network element grants the speech item only if both its own speech item request situation and the other controlling network elements allow the speech item.

Abstract: The present invention relates to data communication systems. In the disclosed method a data channel is first activated between a first and a second station. A timer function is started so as to control the state of the data channel. The data channel is maintained in a ready state at least until the timer function indicates an expiry of a predefined period. The arrangement is such that after a data transmission is initiated on the data channel the state of the data channel is prevented to be changed from the ready state to another state based on the timer function. The change is allowed only after a predefined event occurs. The system may be provided with a further timer that is implemented in a lower function layer than said timer function.