The Interaction with core IMS nodes
This section describes the sequence of steps that must be followed for the integration of the WebRTC client with IMS. Before you go ahead, set up a Session Border Controller (SBC) / WebRTC gateway / SIP proxy node for the WebRTC client to interact with the IMS control layer.
- Direct the control towards the CSCF nodes of IMS, namely, Proxy-CSCF, Interrogating-CSCF, and Serving-CSCF.
- The subscriber details and the location are updated in the HSS.
- Serving-CSCF (SCSCF) routes the call through the SIP Application Server to invoke any services before the call is processed. The Application Server, which is part of the IMS service layer, is the point of adding logic to call processing in the form of VAS.
- Additionally, we will uncover the process of integrating media server for an inter-codec conversion between legacy SIP phones and WebRTC clients.
The setup will allow us to support all SIP nodes and endpoints as part of the IMS landscape. We will follow the interaction...
