What is the Difference Between a Session Border Controller and a SIP Proxy?

session border controllerWe often find that our customers have a misconception of Session Border Controllers (SBC). Customers that request a SBC often times need a SIP Proxy rather than a true Session Border Controller.

In general, people think of SBCs as a proxy that can be used for routing, security, and
other types of network administration. Customers seeking some sort of routing
administration – Least Cost Routing, for example – will request an SBC, thinking that is
the solution to their need.

However, an SBC is actually a back-to-back user agent SIP application with a wide variety of other uses such as policy-based access control, transcoding, topology concealment, call accounting, QoS, and call quality statistics.

On the other hand, a SIP Proxy is an IP PBX component used for call functions such as routing. A SIP proxy will send SIP requests to the appropriate destination and return a response. SIP Proxies may also be used for registration, authorization, security, network control, and other call functions.

Download our SIP Proxy PDF to learn more. Or For a more detailed and technical explanation, visit Likewise.am.

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About Stephen Wingfield

My name's Stephen and for more years than can count I have been struggling to Liberate the World from Traditional Phone Systems and Traditional Phone System Vendors. That means working closely with partners around the world in English and French with the purpose of seeing how best we can approach local markets. Making sure that marketing and sales support are in place. Above all though giving tips and preparing quotes and proposals to make sure that customers get a 'best-fit solution' and often for the cost of 'off-the-shelf'. A lot of my purpose in contributing to this blog is to provide from these experiences and what made the difference that made the difference. Whether you are already working with Bicom Systems or not yet please feel free to add your own comments or ask your own questions. There should be much to learn for us all.