Mission Statement: PsipTN.org (Public SIP Transport Network) is a public benefit alliance dedicated to support the infrastructure of SIP-based End devices - enabling device plug-and-play Servers -- incorporating SIP trunk services Networks - allowing SIP peering and transit Directory service - providing number management by developing and maintaining mission critical software, protocols and services.

About PsipTN

PsipTN™ stands for "Public SIP Transport Network", an open standard based global IP network capable of carrying voice, media, contents and a variety of hosted services while providing interoperability with all PsipTN Ready hardware IP end points and soft clients. The PsipTN network is operated by contributing members of the PsipTN.org and currently hosts 2 million users worldwide and major service provider partners in 4 continents. Designed with the SIP standard as the basis of the network, PsipTN allows interoperability with traditional Public Switched Telephone Network (PSTN) while providing through its members linkages to new generation voice-over-IP, multimedia and value-added solutions, devices and services.