CompTIA ECTF Group

ECTF Work Areas: Media Services

The media services work area is concerned with increasing the ability of computer telephony media services applications to share media resources and integrate with existing call control architectures.

Media services refers to the branch of CT technology that is concerned with media processing, including playing and recording of voice files, speech recognition and text-to-speech technology, DTMF detection and generation, and T.30 and T.611 fax services. Media services technology involves making media processing resources in a telephone system available to client software.

In this work area the goals are to define and evolve a robust, scaleable and networkable computer telephony media services platform model and to define interfaces that are based on this model. This work area has also taken on responsibility for issues related to low-level switching fabric interfaces.

Specifications Published
The following specifications have been published in the media services work area:

• S.100 (Media Services Model and 'C' API) Revision 1
  This implementation agreement is Revision 1 of the S.100 interface. It is made obsolete by Revision 2 but is provided here for reference.
  
• S.100 (Media Services Model and 'C' API) Revision 1 Addendum
  This addendum to the S.100 Revision 1.0 defines values for symbols and constants contained in the IA. It also defines the procedures and framework for adding new symbols and constants to S.100. It provides the basis for interworking with other S agreements. It has been incorporated into S.100 Revision 2 but is provided here for reference.
  
• S.100 (Media Services Model and 'C' API) Revision 2
  This implementation agreement provides an effective way to develop CT applications in an open environment. The agreement defines a client-server model in which applications use a collection of services to allocate, configure, and operate hardware resources. It abstracts implementation details of call processing hardware and switch fabrics to enable portable applications to be written. It provides these services using an operating system independent API that can be extended to support custom APIs. The S.100 interface allows applications to be portable from one S.100-based platform to another.
  • Volume 1: Application Model and Architectural Framework
  • Volume 2: Data Types and C Language Conventions
  • Volume 3: Client Server Interaction
  • Volume 4: Framework
  • Volume 5: Call Control and Routing
  • Volume 6: Media Resources and Services

    ZIP compressed file containing Acrobat versions:

  • ECTF S.100 Rev 2.0
    
• S.200 (Media Services Protocol)
  This implementation agreement defines the wireline specification of the messages (PDUs) between the application server and the resource server. The agreement enables the mixing of application servers and resource servers from different vendors.
  
• S.410 (JTAPI Media API) Revision 1
  This implementation agreement is Revision 1 of the S.410 interface. It is made obsolete by Revision 2 but is provided here for reference.
  • Acrobat version of ECTF S.410 - Rev 1.0
  • Zipped .PDF version of ECTF S.410 - Rev 1.0
  • Zipped HTML version of ECTF S.410 - Rev 1.0
    
• S.410 (JTAPI Media API) Revision 2
  This implementation agreement describes the ECTF S.410 Media Services API. S.410 is the Java TM language expression of an object oriented application programming interface for the ECTF Architecture. Java applications written to S.410 can interoperate with C applications written to S.100, and can share the same implementation servers. S.410 is incorporated into the Java Telephony API (JTAPI) version 1.4, as the package javax.telephony.media.
  • Zipped HTML version of ECTF S.410 - Rev 2.0
  • Zipped Java source code for S.410 - Rev 2.0
  • Zipped compiled jar file for S.410 - Rev 2.0