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# Multi service Erlang B

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• #33708
Fredrick
Guest

The Erlang B can be used to calculate number of lines,
given an offered traffic and GoS.
Can Erlang B be used for the case with e.g. two
services with different mean holding times?
Service A = 10 Erlangs offered
Service B = 2 Erlangs offered.
For example, the number of lines is given
from Erlang B table with 12 (10+2) Erlang offered and
GoS, lines=ErlB(12,Gos)

Or using Erlang B for each service separately,
lines = ErlB(10,Gos)+ErlB(2,Gos)?

Hope you can help me!

#33709
Luis
Guest

From my point of view you have to take into account:
Lines are assigned with the same services, if so:

You have to add probability of usage:
service A: lets say 60%
Service B: lest say 40%

Tot Trafic is:
10 *0.6 + 12*0.4= 10.8 Erl
Lines= Erlb(10.8, GOS)

#33710
ruel
Guest

we were tasked to calculate the number of trunks for a districting study using gos o.o1 erlang, can you please teach me how

Viewing 3 posts - 1 through 3 (of 3 total)
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