Functions using Erlang-B, Erlang-C, and Poisson
NLines:
(offered_traffic, GOS_required, traffic_formula)
Enter offered traffic, service level objective and formula. Function will return the number of lines that just exceed required specification.

GOS:
(offered_traffic,number_of_lines,traffic_formula)
Enter offered traffic, number of lines and formula.
Function will return the Grade of Service.

Traffic:
(number_of_lines,GOS_required,traffic_formula)
Enter the number of lines, service level objective
and formula. Function will return the traffic
capacity of a given trunk group.

Functions using Erlang-C
Agents:
(offered_traffic,SL-proportion,SL_time,talk_time)
Enter offered traffic, service level and talk time.
The calculation of Service level will be
expressed in the form of x% of calls to be
answered by "y" seconds.

ASA:
(offered_traffic,number_agents,talk time)
Enter offered traffic, number of agents and a
time value. The function will return the average
speed of answer.