Patent ID: 7969993
Filing Date: 2011-06-28
Classification: H04L,H04M

Abstract:
1. A gateway apparatus that connects a presence server of a first system and a second system providing another presence system, comprising: a receiver section that receives first presence information for a given user from one of: the first system and the second system when user presence information of the given user is changed; a converter section that converts the first presence information to second presence information, wherein the second presence information is compatible with the other of: the first system and the second system, and wherein, independent of protocol format of the first presence information and the second presence information, content of the first presence information is different from content of the second presence information, the content of the first presence information including at least a first field having a first value that is different from a corresponding value of a corresponding field of the content of the second presence information, each of the content of the first presence information and the content of the second presence information corresponding to the change in the user presence information; and a synchronizer section that provides the second presence information to the other of: the first system and the second system, wherein the second presence information synchronizes the user presence information of the given user in the first system and the second system.