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Media Resource Function (MRF)

IMS (IP Multimedia Subsystem) is an architectural framework originally developed by the 3GPP to facilitate access to voice and multimedia applications based on IP, both from fixed and mobile phones. In this context, the Media Resource Function (MRF) is the network component able to provide multimedia functionalities, such as dialogues using VoiceXML, TTS, ASR, DTMF, play announcements and audio conferencing.

The architecture ensures the complete separation between Control Layer, Service Layer and Data Layer, and establishes standard interfaces for the various architectural elements, with obvious advantages for the user. This makes it possible to choose different products and suppliers for the various components, thereby avoiding costly, monolithic solutions.

The main distinguishing features of the Media Resource Function profile are:

  • the support for standards (SIP/RTP, RFC 4240, RFC 5552 & VoiceXML) required for MRF in IMS architecture; this allows interoperability both with Call Session Control Functions (CSCF) and Application Servers (SIP AS).

  • the management of voice interaction entirely on SIP/RTP: the system provides dialogue functionality via VoiceXML, TTS, ASR and DTMF, play announcement functionality and audio conference functionality supporting G711 and G729 audio stream mixing.

  • the support for TTS and ASR technologies for the provision of advanced voice services.

  • the ability to deliver both simple announcement services and sophisticated voice dialogues.

  • the ability to deliver audio conferencing services.

  • The support for various operating systems (both Windows and Linux).

Tangible Benefits for Your Business

The Many Advantages of Using VoxNauta as MRF

The Loquendo MRF platform always keeps up with the evolution of network architectures. Profiled as a powerful multimedia resource function element, it can provide multimedia flow services in IMS (IP Multimedia Subsystem) architecture, exploiting its architectural benefits, i.e. separation between control-layer and service-layer and deployment via an IP network, thus using the same infrastructure for voice and data:

  • Facilitates the creation and deployment of new services - in particular, services using simultaneous multimedia sessions (voice, video and data) during the same call are now possible.

  • Attracts new clients and retains existing ones - enhanced voice quality is now possible for business applications, such as audio conferencing, thanks to the use of wideband voice encodings. Wireless applications (e.g. SMS and similar) can now also be offered to clients using wireline and broadband applications.

  • Minimizes time-to-market - thanks to the immediate interoperability with other application servers, MRF allows the rapid deployment of a wide range of services with audio functionalities on IP networks, so improving existing voice applications.