Patent ID: 8700784
Filing Date: 2014-04-15
Classification: H04L

Abstract:
1. A method of accessing a home device in a private network from a remote device when located outside said private network, wherein the private network includes a multimedia gateway connected to a multimedia service network, comprising the following steps executed in the remote device: sending a session invite message directed to the multimedia gateway over the multimedia service network, said session invite message including an identification of a selected home device if available in the remote device, receiving connection parameters of a residential gateway in the private network from the multimedia gateway in response to said session invite message, wherein said connection parameters are associated with the selected home device if said home device identification was included in the session invite message, and with a proxy function in the multimedia gateway capable of providing home device information, if no home device identification was included in the session invite message, using the received connection parameters to communicate media with said selected home device or to obtain home device information from said proxy function; wherein said home device identification is included in the session invite message, if the remote device has obtained home device information in a discovery process executed previously when located inside the private network; and wherein if no home device identification was included in the session invite message, a VPN tunnel is established with the private network to said proxy function, and said VPN tunnel is used for synchronizing with the proxy function to obtain information on home devices in the private network.