To use this model, use the Simulation|Parameters... command or tool to set the number of steps and simulation length to the number of calls expected per month.
Use the Simulation|Recalculate command or tool to start the simulation, when prompted provide the length of the shortest call and the longest call expected.
The model generates a series of random length calls between the minimum and maximum given, calculates the cost of each call and the total cost of the calls for the month. This allows the user to compare the three calling plans.
The constants can be edited if the terms of the 800 number plans change.
