Science, asked by yuvraj716, 1 year ago

what do STD and ISD stand for

Answers

Answered by IMDILJAAN

12

Answer:

ISD (International Subscriber Dialling) stands for International calls, STD (Subscriber's Trunk Dialling) .

Hope Helps ❤️

Answered by Anonymous

6

STD = subscriber trunk dialling

ISD = International subscriber dialling

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