SMS Fallback acts as a reliable backup, sending OTPs via SMS when WhatsApp encounters delivery hurdles like network outages or app downtime. Customized for India's OTP ecosystem, it navigates DLT compliance, handset variations, and urban rural divides to guarantee timely verifications for fintech and online services. This guide delves into comparisons, case studies, and best practices... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/