[Oreka-user] how to prevent saving some successive calls in one file

hi
I wonder if somebody can help me. I have 3 stations. I call from station 1
to station 2 & after about 5 or 10 seconds of terminating it, I call from
station 3 to station 2. In this situation it only generates one record & one
file that contains both calls in station 2. I saw "Couldn't find Skinny
session for StopMediaTransmission" error in orkaudio.log file & guess that's
cause of my problem. Is there any property to add in config.xml file & solve
the problem or any other idea?