The present invention provides a system and method for real-time communication signaling between HTML5 endpoints and between HTML5 endpoints and the IMS Core of a telecommunications network. The method adapts complex signaling on the server-side into simple operations towards the Web. In an embodiment the system includes an integrated web-enable session border controller (WSBC) including a network-side controller/a signaling engine, a media gateway and a client-side controller. The client-side controller provides a JavaScript API to encapsulate the signaling layer. The WSBC also includes session border control functionality, terminates Internet domain communications with the client-side, parses, and normalizes the Internet domain communications into an internal protocol suitable for communication with telecommunications network systems. The system thereby provides a dedicated signaling channel with the network-side controller for applications on the client to interact with telecommunications network services.