TRAI mandates caller-ID apps like Truecaller share spam data with telecom operators
India's telecom regulator TRAI has amended commercial communications rules to require caller-ID and call-management apps to forward user spam reports to a blockchain-based platform run by telecom operators. Truecaller, whose largest market is India with over 350 million monthly users there, has criticized the move as a one-way, anti-competitive data transfer that benefits telecom companies at its expense.