write the full form of STD
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2
hey dude,
Subscriber trunk dialling
Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance.
have a great day...
Subscriber trunk dialling
Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance.
have a great day...
Answered by
3
✨ Hey mate ✨
Full form of STD in bio is sexually transmitted disease.
♥ Hope it helps ♥
Full form of STD in bio is sexually transmitted disease.
♥ Hope it helps ♥
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