What is the full form of "STD"?
A. Standard Dividend
B. Subscriber Trunk Dialling
C. Standard Time Definition
D. Simple Tax Deduction
Answer: Option B
Solution(By Examveda Team)
Subscriber trunk dialling, also known as subscriber toll dialing, is a telephone numbering plan feature and telecommunications technology for the dialing of trunk calls by telephone subscribers without the assistance from switchboard operators. The technology was introduced in the United Kingdom in the 1950s.This Question Belongs to Abbreviations >> General Abbreviations
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