Teletraffic engineering/What is the Engset calculation?/Solution

Table 1 below shows the results for Erlang B and Engset calculations.

Number of sourses	10	20	100
traffic offered in Erlang	5	5	5
GoS	0.01	0.01	0.01
# of lines (Engset)	9	10	11
# of lines (Erlang)	11	11	11

Table 1: - TABLE COMPARING RESULTS FOR ERLANG AND ENGSET CALCULATIONS FOR NUMBER OF LINES SPECIFIED FOR SAME NUMBER OF SOURCES AND OFFERED TRAFFIC AT 0.01 GoS.

Notice that the Erlang B formula specifies the maximum number of lines needed even if there are fewer sources.