Question

Write the full forms.
Email
SMS
PIN
STD
ISD​

Answer 1

Answer:

The full form of ISD is International Subscriber Dialing. ISD is also known as an IDD (International Direct Dialing) is an international telephone call that is dialled directly by a telephone subscriber or an individual, rather than depending on the phone operator. Each nation shall be allotted an ISD number.

Answer 2

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• Email - Electronic mail.

• SMS - Short message service.

• PIN - Postal Index Number.

• STD - Subscriber trunk dialing.

• ISD - International subscriber dialing.

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