Patent ID: 9008057
Filing Date: 2015-04-14
Classification: H04L,H04W

Abstract:
1. A first gateway apparatus configured to be connectable to a local network and an external network, to obtain presence information of a device apparatus on the local network and to provide the obtained presence information to a presence management apparatus on the external network, said first gateway apparatus comprising: an obtaining unit configured to obtain the presence information of the device apparatus; a transmitter configured to transmit the presence information to the presence management apparatus via the external network; and a receiver configured to receive, from the presence management apparatus, a suppression instruction of the presence information transmission, wherein said transmitter further configured to suppress the transmission of the presence information to the presence management apparatus in response to reception of the suppression instruction; wherein, in response to when a second gateway apparatus is connected to the local network, and the external network and the presence management apparatus are shared by both of the first gateway apparatus and the second gateway apparatus, said transmitter is further configured to transmit a message to the presence management apparatus in order to designate the second gateway apparatus as a master of the first gateway apparatus, and said receiver is further configured to receive the suppression instruction from the presence management apparatus as a response to the transmitted message; wherein the first gateway apparatus and the second gateway apparatus are IP multimedia system gateway apparatuses.