SMS Fallback cost structures balance higher per message expenses against dramatically improved delivery rates and transaction success. This financial analysis breaks down SMS Fallback economics WhatsApp OTPs at ₹0.35-0.45 each handling 70% of traffic, with remaining 30% falling back to SMS at ₹0.12-0.20 per message. You'll learn calculation methods for your specific volume, understand... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/