
Verification, SMS and voice APIs plus phone number intelligence
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TeleSign provides APIs for global verification and programmable communications. Developers use its SMS, voice and phone number intelligence products to confirm users and fight fraud when people sign up or log in. The company describes itself as a mobile identity company and a communications platform as a service. Banks, social apps and ecommerce sites embed it to send one-time passcodes and assess phone numbers. It suits engineering teams that need reliable two-factor authentication worldwide.
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