SMS Fallback transforms unreliable OTP delivery into 99%+ guaranteed success by combining WhatsApp efficiency with text message dependability. Indian market conditions demand backup systems because 8% failure rates translate to massive revenue losses. Covers DLT compliance requirements, SIM-swap security considerations, delivery report logging needs, and omnichannel future trends incl... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/