At the Spring VON show in San Jose, CA I had the opportunity to give a presentation on Secure VoIP Peering. The presentation is an overview tutorial on how standard Public Key Infrastructure (PKI) services and the OSP protocol are being used today to enable secure peer to peer VoIP calls.
For those who do not know, OSP is a protocol standard defined by ETSI, the European Telecommunications Standards Institute. ETSI is best known as the standards body that created the global mobile phone standard known as GSM. OSP is a protocol used by a softswitch or session border controller to query and external route server for call routing and then also report call detail records when the call is finished. OSP is a set of data rich XML meesages transported over HTTP so it is a natural fit with SIP and web based services. Further, OSP is designed for routing, authorization, pricing and usage reporting for any IP service, not just VoIP.
To view the Flash version of the Secure VoIP Peering presentation, go to http://www.transnexus.com/Flash/2007_Spring_VON_-_Secure_VoIP_Peering/player.html
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