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WAEC Commerce 1991 (August) Question 45

Question 45

Communication

A service provided by the NITEL through which one can dial any number one wants whether it is a local, trunk or overseas is called the

  1. A.Internal Communication System
  2. B.Standard Dialling System
  3. C.Subscriber's Dialling System
  4. D.International Telecommunications
  5. E.Coded Dialling Order
Show the answer and explanation

Answer: C (Subscriber's Dialling System)

Explanation

Subscriber dialling (subscriber trunk dialling) lets a subscriber dial local, trunk and overseas numbers himself without an operator.