SMS Fallback represents current best practice, but future OTP delivery evolves toward RCS, AI routing, and omnichannel verification. This forward looking analysis explores technologies succeeding traditional SMS Fallback Rich Communication Services bringing verified sender branding and interactive elements to native messaging apps. You'll understand SMS Fallback evolution roadmaps, le... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/