PCO - Public Call Office
Public Call Office refers to the place in a public area where telephone facility is available. It is aimed towards providing an affordable communication platform at places where it is needed.
In India, you may find a lot of PCO booths with the facility to make call by inserting a Rupee Coin. One of the biggest service provider of "Public Call Office" is BSNL. But, now some private telecom companies like Reliance, Tata Indicom, Idea and Airtel are also entering in this market.