Summary
In this chapter, we saw how to interconnect the WebRTC setup with the IMS infrastructure. It included interaction with CSCF nodes, namely PCSCF, ICSCF, and SCSCF, after building and installing them from their sources. Also, FreeSWITCH Media Server was discussed, and the steps to build and integrate it were practiced. The Application Server to embed call control logic is Kamailio. NAT traversal via STUN / TURN server was also discussed and its importance was highlighted.
To deploy the WebRTC solution integrated with the IMS network, we must ensure that all of the required IMS nodes are consulted while making a call, the values are reflected in the HSS data store, and the incoming SIP request and responses are routed via call logic of the Application Server before connecting a call.
In the next chapter, we will see the interaction of the WebRTC client and server logic with Intelligent Networks (IN). The process of establishing communication between the WebRTC client from the web browser...
