Distributed Architecture of VOIP for firewall/NAT Traversing
with the development of the VOIP technology, firewall and NAT become serious problems in network access. Developed from a new technology named SBC(session border controller),this paper proposes distributed architecture to resolve firewall/NAT traversing. To achieve this, SBC is split into two servers: SAG (signaling access gateway) and MCC (media channel controller) to let signaling and media flow pass through separately. In this way, the capacity of VOIP system can achieve great improvement. The limitation depends on the max signaling traffic but not media packets that a SAG can process. The greater significance is that it proposes a fully distributed architecture in which every element can be easily extendedand dynamically controlled without any modification on the existing system.
VOIP SIP SBC Firewall NAT Traverse
Dawen Zhou Benxiong Huang Yijun Mo
Department of Electronic and Information Huazhong University of Science and Technology.Wuhan.Hubei.China
国际会议
武汉
英文
1160-1163
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）