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public call office
A public call office (PCO) is a telephone facility located in a public place in India and Pakistan. It is also another name in the United Kingdom for a public telephone box (postal addresses for these kiosks sometimes include "PCO").
==In India==
In India, manned and automated (coin operated payphone) versions of the service are in existence. BSNL, a public sector corporation, has the largest installation of PCOs in India. Mr. R. L. Dube, a Dept of Telecom officer, introduced concept of PCOs in India. As of 2006 there were about 4.2 million (42 lakh) PCOs operating in India, according to the Telecom Regulatory Authority of India (TRAI).
Private sector operators such as Reliance Infocomm, Tata Indicom, Hutch, Idea and Airtel predominantly are prepaid PCO providers and have a moderate number of PCOs in the public landscape.
There are two types of PCOs: landline and wireless. The wireless PCOs use two technologies: CDMA and GSM. Reliance and Tata Indicom are CDMA-based prepaid PCO connection providers. Airtel, Idea and Hutch are GSM-based prepaid PCO connection providers. Initially, the Dept of Telecom, and later BSNL, MTNL and Airtel provided fixed landline postpaid PCO connections. BSNL and MTNL also provide prepaid PCOs.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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