At times, Architect forces audio to flush behind the scenes by injecting a VXML <field > with a 1 millisecond timeout. This action occurs in these scenarios:

• Immediately before Call Data, and Call Secure Data actions.
• Immediately before Transfer actions (all types).
• Immediately before Disconnect and Return To Agent.
• Immediately before entering the first new Task or Menu following a Set Language.
• Immediately before to playing the audio in the Play Audio On Silence.
• As part of the Detect Silence action.
  Note: The <field> timeout is configurable with the action.
• Upon entry and exit of the Hold Music action.

For more information, see Flush Audio action.