2006-08-16 03:31:49 · 22 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
I.S.D : International Subscriber Dialling (ISD) is the term used to describe an international telephone call dialled by the caller rather than going via an operator.
S.T.D : Subscriber trunk dialling (STD) (also known as subscriber toll dialling) is an term for allowing subscribers to dial trunk calls without operator assistance. This term however, is still widely prevalent in India to describe any national call made other than one's local unit.In India the term still applies and to dial out of one's unit area, the relevant city code has to be prefixed to the local number. This prefix starts with a 0. Certain numbers are also prefixed with 95 which are local calls within 500 km.
P.C.O :Public call office (PCO) is term used for the telephone facilities located at public places in India. There are both the versions in service -manned and coin operated.
Yes these are telecom related unless STD could also mean Sexually Transmitted disease
2006-08-16 03:40:08 · answer #1 · answered by spectramizer 2 · 10⤊ 2⤋
I.S.D. - International Subscribers Dialing.
S.T.D. - Subscribers Trunk Dialing.
P.C.O. - Personal Calling Operator.
2006-08-16 03:39:00 · answer #2 · answered by Anonymous · 2⤊ 0⤋
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RE:
What is the full form of these abbreviation I.S.D, S.T.D, P.C.O ??? these are telephone survice related te
2015-08-06 06:45:20 · answer #3 · answered by Anonymous · 0⤊ 1⤋
I.S.D is International Subscriber Dialling
S.T.D is Subscriber Trunk Dialling
P.C.O is Public Call Office
2006-08-16 06:08:08 · answer #4 · answered by eitip k 2 · 1⤊ 0⤋
International Subscriber Dialing I .S .D
Subscriber Trunk Dialing S .T.D
Public Call Office P:C:O
2006-08-16 03:44:00 · answer #5 · answered by agni 4 · 1⤊ 0⤋
I.S.D.-International Subcriber Dialling
S.T.D.=Subscriber trunk Dialling.
P.C.O-Public Call Office.
2014-12-28 20:51:44 · answer #6 · answered by Abhishek 1 · 1⤊ 0⤋
ISD - International Standard Dialing
STD- Starndard Trunk Dailing
PCO - Public Call office
2006-08-16 04:37:49 · answer #7 · answered by Koyyalamudi R 2 · 1⤊ 0⤋
Abbreviation For Communication
2016-12-10 15:01:02 · answer #8 · answered by ? 4 · 0⤊ 0⤋
I.S.D. = International Subsciber Dialing.
S.T.D. = Subsciber Trunk Dialing.
P.C.O. = Public Call Office.
2006-08-16 03:48:44 · answer #9 · answered by snehal 3 · 1⤊ 0⤋
SD - International Standard Dialing
STD- Starndard Trunk Dailing
PCO - Public Call office
2006-08-19 23:32:15 · answer #10 · answered by Anonymous · 1⤊ 1⤋