SMS Fallback represents current best practice for OTP delivery but will evolve with emerging technologies like RCS. The Indian market increasingly demands reliable authentication as digital transactions grow exponentially. Businesses adopting SMS Fallback now position themselves ahead of competitors still using single channel approaches. Future developments include AI powered routing that predicts failures before they occur, triggering SMS Fallback even faster. Providers like Anantya.ai continuously enhance their SMS Fallback capabilities with smarter algorithms and additional backup channels. Omnichannel approaches may add voice and email fallbacks beyond current WhatsApp SMS combinations for ultimate reliability. Contact now!