A Novel Peer Relay Lookup Scheme for SIP+P2P VoIP System


Because of the Best-effort service in Internet, direct routing path may not always meet the VoIP quality requirements. Thus, most VoIP systems such as SIP+P2P system use application-layer routing scheme to achieve better QoS performance, which is to use relay node to relay RTP stream from the source node to the destination node. The key of this scheme is… (More)


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