5th April 2001 at 16:23 #33250
if you measured Y= 0.32 Erl then
minute of use (MoU)are : 0.32*60=19.2 min.
And if you know number of calls during the measured period. It’s simple: 19.2/3=6.4 min.
-avg call duration is 6 min 24 sec