Recorded files not closed?

Hi!

I'm working on a software on top of bayonne voice server (dialogic
driver). I'm trying to handle recorded (via bayonne) audio files
properly from external application.
I used lsof(8) and fuser(1) commands to find when file will not be
opened by bayonne (to copy, move or process audio data). But I found all
recorded files are still open after days of actual
recording procedure.

I've checked source code. All drivers has open(data.record.name) and
none has close(...)

bayone 1.2.x

-- 
Dmitry