The MPP speech proxy component integrates third-party media resources, such as Automatic Speech Recognition (ASR) and Text-to-Speech (TTS) speech servers, into the Experience Portal system by employing Media Resource Control Protocol (MRCP).

When a speech application requests ASR or TTS resources, the speech proxy component communicates with the speech servers and selects the appropriate server to provide those resources. The MRCP proxy reports the state of the speech servers to the MPP System Manager.

If directed by the EPM, the speech proxy component can also add or remove communication ports between an MPP and any speech server in the system.