Converged Application Server enables control of media servers using the Media Server Control API based on JSR309, a standard Java interface. JSR309 (also referred to as JSR 309 and the JSR 309 API) defines an abstract Java interface for the manipulation of audio and video streams and conferences. Vendors of IP media servers provide JSR 309 based driver implementations that work with their IP media servers.

The JSR309 architecture assumes a distributed or IMS-like model where the Converged Application Server and media server reside on separate physical servers. User Agents (such as soft phones) interact with the applications deployed on Converged Application Server using the SIP protocol.

Converged Application Server supports media server control by providing built-in JSR309 support. The support includes the Media Server Control API, which provides a standard API for developing and deploying media rich, JSR-based applications for the Java platform without having prior knowledge of the underlying Media Server Control protocols.

A Java application that uses the Media Server Control API can use any JSR309-based implementation with any compatible media server. However, Converged Application Server provides a built-in JSR309 media driver, JVoiceBridge.

Whether using JVoiceBridge or the driver for another media server, the CAFE and Media Server Control APIs offer interfaces that ease the task of developing media-rich applications, such as Conferencing, Ring-back tone, or IVR applications easily using the JSR309 API.

For developers, the Media Server Control API provides a standard API for developing and deploying media rich, JSR-based applications for the Java platform without having prior knowledge of the underlying Media Server Control protocols. Moreover, a Java application that uses the Media Server Control API can use any JSR309-based implementation with any compatible media server.

For more information, see JSR 309: Media Server Control API, https://jcp.org/en/jsr/detail?id=309.