Unlike voice, Data is not scalable, and coverage of a particular BTS/Node-B shrinks as the number of subscribers or usage per subscriber increases on that BTS/Node-B. Moreover, a lower amount of spectrum with operators, 3G spectrum?s being on the relatively inferior 2100 MHz band and limited existing infrastructure/lower tower count require Bharti to expand its BTS footprint to expand coverage/build capacity. This will drive network opex increases. In addition, blended ARPUs (revenues) are unlikely to increase meaningfully due to the data vs. voice trade-off.
