Media Ressource Function

The CreaLog MRF is a powerful multimedia server in the IP Multimedia Subsystem (IMS) architecture. With it, service providers can quickly deploy multimedia services across fixed and mobile networks.

Within an Intelligent Network (IN), the Media Server and Special Resource Function play announcements, record user input and collect keypad input from the caller. Media Servers are part of the IMS architecture for:

  • Ring back tones
  • Tones to alert users e.g. when their mobile plan allowance is exceeded during a call
  • Tariff announcements, opening hours and network related information
  • Collecting keypad input from users

There are two ways to generate input for the announcements: One way is to upload prompts (sound files), the other is to use Text-to-Speech resources, which generate speech output from typed text. 
The CreaLog Media Servers and SRF collect user input via keypad or speech and support all relevant standards including SIP, MSML and HD-Voice.

For more information download the CreaLog Telco Application Catalog.




Enable efficient expansions and the delivery of multiple services

Platform must interact with several services simultaneously

Deliver high-availability, carrier-grade services

Support for NETANN, MSCML, MSML, AMSML, VxML and other major interfaces


Deployment of multimedia services across fixed and mobile networks which reduces costs and time to market

Leverages IMS infrastructure with interfaces for IMS and fixed NGN

Allows any access method: 2G GSM/CDMA, 3G UMTS/CDMA, 4G LTE, 5G

Supports a large variety of audio and video CODECs; uses no DSPs

General requests

+49 89 324656-0

Service Hotline (24/7)

+49 89 324656-10

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