  It has been suggested in voice over IP that an appropriate choice of the
distribution used in modeling the delay jitters, can improve the play-out
algorithm. In this paper, we propose a tool using which, one can determine, at
a given instance, which distribution model best explains the jitter
distribution. This is done using Expectation Maximization, to choose amongst
possible distribution models which include, the i.i.d exponential distribution,
the gamma distribution etc.
