PLAY_VOICE_STREAM_RTN_ST

total_records
The number of voice records played. If the wait flag was set to CA_NOWAIT, this may be less than the record_count supplied because a blocking condition occurred.
underrun
Indicates whether underrun occurred before playing the voice data. NO_UNDERRUN indicates that underrun has not occurred. ACCEPTABLE_UNDERRUN indicates that underrun did occur, but the play_flags for the previous voice data were set to PERMIT_UNDERRUN. UNACCEPTABLE_UNDERRUN indicates that underrun did occur, and the play_flags for the previous voice data were set to UNDERRUN_NOT_EXPECTED.