Truecaller is the mobile app that’s transforming the phonebook. What began as an app to identify unknown numbers and block spam calls is now the largest mobile phone community,
Truecaller has seen some fantastic growth since launching back in 2009. Their app is built around the idea of a smart phonebook, pulling in contact data from your phonebook and social networks, as well as blocking calls you don’t want to receive and making personal contact suggestions. With some 100 million users, Truecaller has a strong user base of people all over the world.
In order to continue delivering the highest level of accuracy when providing contact information, Truecaller requires a secure two-factor authentication service to verify users upon registration. Typically, user verification is done via SMS to a user’s phone number and the user must then enter a unique pin identifier into the app. But Truecaller wanted to try something else, something that would reduce the number of steps a user must take during the verification process.
To solve this challenge, Sinch developed a patented Flash Call technology. With this solution, Truecaller users on Android are called via the Truecaller service but Sinch is able to intercept the call before it has time to ring and verify the user’s device. If the number is verified, Sinch sends a callback to Truecaller with the results.
“Sinch has created a service that has been very helpful to our company. It’s easy to integrate, easy for our users, and provides great results.” – Alan Mamedi, CEO & founder of Truecaller
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