Patent ID: 7761576
Filing Date: 2010-07-20
Classification: H04L

Abstract:
1. A peer-to-peer communications system comprising: a private network terminal device having only a private address; a global network terminal device having a first global address; and a repeating installation device having a second global address, wherein the private network terminal device is configured to generate a relay request to be transmitted to the repeating installation device to instruct the repeating installation device to relay a subsequent connection request to the private network terminal device, wherein the connection request is initially sent from the global network terminal device to the repeating installation device to request connection with the private network terminal device, and wherein the repeating installation device is configured to receive the relay request transmitted from the private network and the connection request transmitted from the global network terminal device, wherein the private network terminal device is directly connected with the global network terminal device after receiving the connection request to transmit, to the global network terminal device, a replacement request for replacing a first communication via the repeating installation device between the private network terminal device and the global network terminal device, with a second communication via a direct connection between the private network terminal device and the global network terminal device in which the private network terminal device and the global network terminal device do not communicate further with the repeating installation device, wherein, in response to a disconnection request for disconnecting the first communication with the repeating installation device, transmitted by the global network terminal device after receiving said replacement request and subsequently received in the private network terminal device, said first communication with the repeating installation device is disconnected and the second communication is commenced, and wherein the repeating installation device relays the connection request to the private network terminal device when the repeating installation device receives the connection request from the global network terminal device, and wherein the repeating installation transmits the disconnection request to the private network terminal device when the repeating installation device receives the disconnection request from the global network terminal device, wherein the repeating installation device is temporally used only when the private network terminal device connects the global network terminal device.