Specs
Learn how to build, deploy and troubleshoot web-rtc services using all open source components. Finish the course with a working system available by cloning the Alta3 "sipgate" github repository which provides a working framework, ready to provide the foundation for production web-rtc applications.
NAT Essentials - Understand the technical details of traversing Full cone, ip restricted, port restricted, and symetitrical NATs
STUN - A detailed analsysis of the STUN protocol
TURN - A detailed analysis of the TURN protocol
ICE - Learn how ICE manages NAT traversal.
STUN/TURN/ICE labs - configure and deply coturn.
NGINX - Learn how to configure NGINX as a reverse proxy, SSL edge, and preread forwarder.
websocket essentials - Deploy, manage and troubleshoot websocket based services, especially as deployed in web-rtc.
Kamailio ws (web socket) - Deploy a secure proxy to act as carrier grade websocket to SIP gateway.
RTP Engine - Learn how to manage, troubleshoot and deploy the portion of NAT traversal logic that performs the work of RTP relay.
js.sip - Learn the essentials of js.sip, arguably the most popular open javascript client in common use today.
A valid domain: sip.alta3.com
NTP config update
A SSL certificate: lets-encrypt
SIP client: js.sip
The web server: NGINX
Kamailio Secure Web socket to SIP gateway: WSS to SIP
siremix: kamailio DB manager
NAT Traversal RTP proxy: rtpengine
A turn server for NAT traversal: coturn
A SIP target to call: asterisk server
labs diagramOverview
Objectives