New Delhi: UK based British Telecom (BT) may launch a low-powered global system for mobile communications (GSM) service in India which can bring down call costs on calls made by mobile phones inside offices.

In India the government does not issue separate licences for such services.

The Telecom Regulatory Authority of India had some time ago suggested the possibility of such networks in the country.

In countries like the UK, the regulator has issued a number of low-power GSM licences that can be operated by independent operators on a spectrum different from that given to GSM operators.

UK telecom regulator Ofcom issued several licences in early-2006 to BT and Colt Telecom among others.

Low-powered GSM is a technology in which small low-powered GSM cell sites are located within a building, on which runs a small localised mobile network.