TRAI (Telecom Regulatory Authority of India) undertook the movement to the new telecom policy in 1999 towards free interconnection between fixed, cellular and other telecom operators. The decision by TDSAT (Telecom Dispute Settlement and Appellate Tribunal) to allow basic telephone operators to offer WLL services – which was heavily protested by the COAI (Cellular Operators Association of India) – was another adverse effect for players like Bharti.
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Source:- IIPM Editorial, 2006