Patent ID: 8208412
Filing Date: 2012-06-26
Classification: H04L

Abstract:
1. A network configuration comprising: a. at least one Network Address Translation device (NAT) connected to a plurality of devices which communicate via Real-Time Transport Protocol (RTP); and b. at least one other device which communicates with said plurality of devices via RTP; c. a Feature Server (FS) configured to determine whether a session involving one of said plurality of devices and said at least one other device requires an RTP proxy for a media stream, and if so directs said media stream, between said one of said plurality of devices and said at least one other device via both said NAT and said RTP proxy, and d. a Session Border Controller (SBC) interposed between said FS and said at least one other device, said SBC including said RTP proxy, wherein said FS determines whether a session requires an RTP proxy if said one of said plurality of devices communicates with said FS via said NAT and if no other RTP proxy is involved in the session, and wherein said FS does not route said media stream through said RTP proxy if it determines such an RTP proxy is not required, wherein said FS is configured to invoke said SBC using signaling configured in a loop around arrangement to bring the SBC into an RTP path, while signaling directly to said at least one other device and said one of said plurality of devices involved, and wherein said FS signals said SBC using an SBC signaling protocol, and signals said at least one other device and said one of said plurality of devices using a device protocol not supported by the SBC.