The gateway is the interface between WebRTC calls and mobile / PSTN networks. For signalling it uses SIP. The USP: very fast call setup times!
Download the current stable version 1.2.4 for 32bit and 64bit Linux systems, API documentation and HTML5/JS examples. For getting started the gateway already contains licenses for 2 concurrent SIP registrations and calls.
For additional licenses please contact email@example.com.