  The queue system,with Poisson arrivals,constant service time and infinite
servers, busy period distribution is intensively studied because, due to its
probability density function quite easy interpretation, it may serve as a clue
to interpret the queue systems, with Poisson arrivals, infinite servers, and
other service time distributions, busy period distributions. In this work the
queue system, with Poisson arrivals,constant service time and infinite servers,
busy period distribution parameters are exactly computed and its probability
density function is interpreted and explained. The only problem is how to
compute the distribution function, for which an algorithm is presented and
exemplified its application.
