Nokia Corporation

Nokia Technologies Oy

Paavo Helenius

Jari Mutikainen

Ilkka Westman

Antti K Laurila

Simo Veikkolainen

Bert Holtappels

Simo Hyytiä

Saku Oja

Andrew Rebeiro-Hargrave

A solution for establishing a session of a real-time media communication service in a communication system comprising at least two separately administered subsystems. The session establishment comprises receiving a request for session initiation, querying subscriber information related to the requested session, and initiating the session according to the queried subscriber information. The invented method comprises detecting that the terminating subscriber does not belong to the same subsystem as the originating subscriber, determining a defined transit server associated with the terminating subscriber, said transit server having access to a subscriber database of the subsystem of the terminating subscriber, and querying subscriber information related to the requested session with a first control message comprising parameters of the requested session to the transit server. The solution allows a connection to be established between users of a real-time media communication service for subscribers of separate administrative subsystems so that operators of each subsystem may possess full control of their own network elements, and the internal connection establishment procedures need minimal alterations for the functionality.

Session establishment for real-time media communication service

A server for a communication system is disclosed. The server is configured to receive group communication information comprising a group detail indicator. The group detail indicator provides information on at least an identity of a group and a type of the group. The server is further configured to store the group communication information, and to make the group communication information available to predefined entities.

Group details of group services

Growing community of inventors

Toijala, Finland

Paavo Helenius