Patent ID: 8417769

Claim:
A gateway in a telephone system, comprising: a controller to receive a connection request from a first telephone terminal in the telephone system, the connection request to establish a connection between the first telephone terminal and a second telephone terminal in the telephone system, the connection request including an audio relay internet protocol (IP) address corresponding to the gateway; and an address conversion manager module in communication with the controller, the address conversion manager module comprising a distributed processing function to: send an address conversion request to a third telephone terminal in the telephone system to process address conversion for stream-type packet data, such as audio and video data, in connection with the gateway; and notify an address of the third telephone terminal, which performs the address conversion of the stream-type packet data, to the first telephone terminal of the stream-type packet data if the third telephone terminal to which the address conversion request is sent accepts the address conversion request, wherein the controller, if the third telephone terminal to which the address conversion request is sent accepts the address conversion request, replaces the audio relay IP address in the connection request with an IP address of the third telephone terminal before sending the connection request to the second telephone terminal.