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Reply To: Ater


Erlang is used as a unit to measure the traffic load. Its main applications are to dimension a call center, and to dimension a

telecommunication network such as a GSM or UMTS network, whatever it is, circuit switched or packet switched.

In its basic definition, the traffic load in Erlang is the total amount of resources used over a period of time. In a telecommunication

network, 1 Erlang actually represents the occupation of one resource (one radio traffic channel in the case of a radio network) during one


If applied in a simple mathematical formula, it becomes :

Traffic load(Erl)=Resources occupied X Time(h).
as one Ater= 120 traffic channel so u have to map e1 for 100Erl on basis traffic load.