GROUP MANAGEMENT METHOD AND SYSTEM IN INTERWORKING SYSTEM OF IMPS SYSTEM AND SIMPLE IM SYSTEM

A group management method and system for group communication in an interworking system of an IMPS system and a SIMPLE IM system is provided. In the method, a client currently connected to one of the IMPS system and the SIMPLE IM system requests the retrieval of the group properties of a group included in the other system to which the client is not connected. The group property retrieval request is converted into a protocol format supported by the other system and is forwarded to the other system. The other system retrieves the group properties of the group, generates a group property response including the retrieved group properties, and forwards the group property response. The group property response is converted into a protocol format supported by the currently connected system and is forwarded to the currently connected system. The currently connected system forwards the group property response to the client.