🎴 Flashcard Mode
Mixed Trivia: Gaming, Business & Tech
Card1 / 20
Mastered0
Review0
QuestionClick to flip
ISD (Written on those private telephone Booths)
AnswerClick to flip back
A
International Subscriber Dialing
💡 Explanation:
ISD stands for International Subscriber Dialing, used for making international telephone calls from India. The prefix code varies by country (e.g., 001 for USA, 0044 for UK). ISD codes are essential for connecting telephone networks globally.