Truecaller and WhatsApp team up to fight spam.

Truecaller is set to launch a caller identification service over WhatsApp and other messaging apps to help users identify potential spam calls over the internet. The feature, currently in beta phase, will be rolled out globally later in May. India, where users receive an average of 17 spam calls per month, is Truecaller's biggest market with 250 million users. The company is in discussions with telecom operators to implement a solution to block telemarketing calls over their networks using artificial intelligence filters.