TeleSign's Messaging service is a REST API that allows you to send SMS messages, alerts, reminders, and notifications, or send verification messages containing one-time passcodes (OTP). TeleSign provides a way to build communications and account security into your web and mobile apps. It is a cloud communications platform that empowers Web and mobile app developers build powerful and secure communication products using a dynamic platform with a large global network. TeleSign supports numerous use cases from SMS and voice messaging, two-factor authentication (2FA), one-time passwords (OTPs), data intelligence, fraud scoring and more. TeleSign‘s easy-to-integrate APIs and SDKs deliver speed, reliability and proven success, that maintains high quality direct-to-carrier routes to ensure a reliable global reach. TeleSign handles billions of communication transactions each year, across 200 countries and 87 languages. Four of the 5 largest companies in the world trust TeleSign to deliver mission critical communications and account security with the highest availability.