Audio Recording for debugging a device
From Zenitel Wiki
On the Turbine devices it is possible for debugging purposes to record the audio, and store the audio files on the station it self.
This could be helpful when experiencing audio quality issues. The station will record what it is playing, picking up and what it is sending to the other participant of the conversation after echo- and noise cancellation have been applied.
Three recordings are done from the application Turbine Test and Demo Application.