The upcoming launch of Reliance Jio can impact adversely other telecom operators on account of free voice calling, but it remains to be seen in voice calls on the network are subsumed in to data usage, said Prashant Singhal, National Telecom Leader, EY.
Ambani said the global practice was to charge for either voice or data, not both, adding that Reliance was willing "to change the telecom industry". Users of Jio will not have to pay any roaming charges across the country and international calls will be substantially cheaper, Ambani said
Market expert, Anand Tandon, says longer-terms investors need to book profits and wait for better price to enter the market again.