Question

Telephone traffic is measured ____

Answer 1

Telephone traffic is measured Erlang(unit).

Answer 2

Answer:

The correct answer will be (D) in Erlang

Explanation:

The complete question -

Telephone traffic is measured

(a) with echo cancellers

(b) by the relative congestion

(c) in terms of the grade of service

(d) in Erlangs

The correct answer will be -

(d) Erlang

• Carried traffic in Erlang is the average number of concurrent calls measured over a given period usually of 1 hour.
• Offered traffic is the traffic that would be carried if all call attempts succeeded.
• The CCITT named the international unit of telephone traffic in 1946 in honor of Agner Krarup Erlang.

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