The use of random digit dialling techniques for telephone interviews is popular but has the limitation of not being able to reach those who have unlisted numbers.

Name: The use of random digit dialling techniques for telephone interviews is popular but has the limitation of not being able to reach those who have unlisted numbers.
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Question

Quizplus · Accepted Answer

Random digit dialing can reach unlisted numbers because it generates phone numbers randomly, not relying on existing lists.

The Use of Random Digit Dialling Techniques for Telephone Interviews