The countrys largest telecom service provider, Bharti Airtel had the most congested network followed by Vodafone-Essar during the September-December 2008 quarter.
According to the regulators quality of service benchmark, Airtel had the highest congestion in the PoI, which means that Airtels network recorded the highest amount of disturbance when an Airtel user spoke to a user of another network, say Idea. Tata Teleservices Ltd was adjudged as the least congested.
The regulators standard for measuring the quality of service specifies that PoI should be less than 0.5% implying that out of 200 calls between two operators only one call should face congestion problem. However, Airtel recorded 41, 42, 37 and 14 PoIs with congestion during September, October, November and December respectively. While in the case of Vodafone the numbers were 22,23,16 and 12 for the same period. Tata Teleservices Ltd on the other hand, along with Aircel and Spice, recorded the lowest number of POIs during the period.
Out of the 66 PoIs experiencing congestion in December 37 recorded more than 5% level of congestion as compared to 67 in September.