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TS 29.199-11 (CT)
Open Service Access (OSA)
Parlay X web services
Part 11: Audio Call

ToC   3GPP‑Page   ETSI‑search   Help    
V9.0.0 (PDF)  2009/12  35 p.
V8.1.0  2009/10  35 p.
V7.2.0  2007/06  36 p.
V6.5.0  2007/06  20 p.

Rapporteur:  Mr. Unmehopa, Musa
See also:  –

This service provides a flexible way to provide multimedia message delivery and the dynamic management of the media involved for the call participants. The interface is very simple, not requiring the developer to manage the creation of the call. The Audio Call web service allows media to be added/dropped for any ongoing call. This web service also allows interaction with other call control web services (e.g. multimedia conference, third party call), enabling delivery of multimedia to call participants in an ongoing call.

The underlying model of the service is based on the following entities:
  • Call Session: a call (uniquely identified) to which participants can be added/removed.
  • Call Participant: each of the call parties (uniquely identified) involved in the call session.
  • Media: the call can utilize multiple media types to support the participants' communication. In particular both audio and video streams are available, including the specific stream direction (i.e. incoming, outgoing, bidirectional).
There are several mechanisms which may be utilized for the message content:
  • Text, to be rendered using a Text-To-Speech (TTS) engine.
  • Audio content (such as .WAV content), to be rendered by an audio player.
  • VoiceXML, to be rendered using a VoiceXML browser.
  • Video, to provide video streaming to the user.
  • Capture media input from the end user.
The service may provide one or more mechanisms, as determined by service policy.

The service allows application control of the call participants' multimedia in a call:
  • Allow multiple media types for each participant. In particular both audio and video as well as chat and data.
  • Add and delete media types.
  • Control the specific media stream direction (i.e. incoming, outgoing, bidirectional) for each media type.
  • Get the current media status of a single call participant or for all the call participants in a call.
  • Control the media interactions for a call participant.
A service policy determines if multimedia application control is supported.

This TS specifies the Audio Call Web Service aspects of the interface.


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1  ScopePDF-p. 6
2  References
3  Definitions and abbreviationsPDF-p. 7
4  Detailed service description
5  NamespacesPDF-p. 8
6  Sequence diagrams
7  XML Schema data type definitionPDF-p. 14
8  Web Service interface definition
8.1  Interface: PlayMedia
8.2  Interface: CaptureMediaPDF-p. 22
8.3  Interface: MultimediaPDF-p. 25Up
9  Fault definitionsPDF-p. 29
10  Service policies
A (Normative)  WSDL for Audio callPDF-p. 30
B  Description of Parlay X Web Services Part 11: Audio call for 3GPP2 cdma2000 networksPDF-p. 31
C  Change historyPDF-p. 33

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