Voice OTP SMS Verification
Deliver secure verification codes globally via dynamic automated phone calls.
Automated Neural Text-to-Speech (TTS)
Convert text instructions into natural-sounding speech dynamically. Our voice synthesis engine supports over 30 languages with human-sounding voice profiles, allowing you to speak verification PINs or transactional updates directly to your users' phones.
Speech Synthesis Engine
// Input Text
"Hello, your Air Spider verification code is 8 4 2 9 1 0. I repeat..."
"Hello, your Air Spider verification code is 8 4 2 9 1 0. I repeat..."
Instant Failover Recovery
Never lose a signup due to carrier delays or regional SMS grid issues. Integrate Voice OTP as a dynamic fallback channel: if a text message is not delivered within 30 seconds, trigger an automated call to read the code aloud.
Incoming Call
AuthGateway
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