Rayo

Rayo is a message-oriented XML protocol for controlling phone calls, audio mixers and a variety of advanced media resources such as speech recognizers, speech synthesizers and audio recorders. These capabilities can be combined to create a wide variety of applications such as menu-based phone systems, in-game conferencing and anonymous dating services.

So why another protocol? While call and media control protocols are nothing new, existing systems are either way too low level and difficult to use (e.g. SIP, MRCP, MGCP, etc.) or far too restrictive for highly interactive applications (e.g. VoiceXML, TwiML). Rayo bridges the gap by providing a unified call+media control protocol that’s both simple to use yet flexible enough to adapt to a wide array of network scenarios.

Want to learn the juicy details?   Visit Rayo.org now