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Upgrade your customer communication with RCS Messaging backed by SMS fallback. Send rich, interactive messages that auto-convert to SMS when RCS is unavailable — ensuring 100% delivery, every time.
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RCS SMS fallback is a smart messaging solution where your Rich Communication Services (RCS) message automatically reverts to a standard SMS when the recipient's device, carrier, or network doesn't support RCS. This ensures guaranteed message delivery even in low-connectivity scenarios or on non-RCS devices.
Deliver messages from a verified sender ID to boost trust and credibility. Authkey’s RCS platform supports end-to-end encryption via Google Messages, ensuring enterprise-level data protection and compliance.
RCS lets you share detailed content without the 160-character limit of SMS. Send product info, service updates, and promotional offers without worrying about message truncation or split texts.
Enhance your communication with images, videos, GIFs, and carousels. Authkey’s RCS makes messaging visually engaging, increasing user attention and brand recall inside native messaging apps.
Track message status instantly with read receipts, delivery updates, and typing indicators. Optimize your outreach based on real engagement metrics, not assumptions.
Add interactive buttons like “Call Now,” “Visit Website,” or “Track Order.” Authkey’s RCS supports suggested replies and actions that simplify user interaction and increase click-through rates.
Enable rich two-way messaging with quick replies and custom responses. Whether confirming appointments or collecting feedback, Authkey makes it effortless to manage customer interactions.
Authkey ensures guaranteed message delivery by automatically switching to SMS when RCS isn't supported—so your message always reaches the user.
Track message status with real-time delivery receipts and read indicators, helping you measure performance and optimize outreach.
Our easy-to-use API and rich documentation mean your team can start sending messages in minutes—with full support for SMS, RCS, and fallback.
Set custom fallback behavior for each campaign—OTP, promotions, alerts, or transactional messages—to ensure the right message reaches users the right way.
Get help every step of the way—from setting up your brand verification, to getting approved on Google RCS, to testing live messages. Authkey makes RCS onboarding smooth and fast, even for first-timers.
We help you stay compliant with DLT templates and headers, so your fallback SMS messages are fully aligned with TRAI regulations.
Monitor traffic, message logs, stats, delivery latency —all from a powerful, easy-to-use dashboard with role-based team access.
Send instant OTPs, account updates, and payment confirmations via RCS—with automatic fallback to SMS for non-supported devices.
Boost conversions with visually engaging promotions—videos, carousels, buttons like “Buy Now” or “Explore Offer”—delivered via RCS and backed by SMS fallback.
Keep customers informed with live delivery updates, tracking links, and order confirmations—all sent via RCS and falling back to SMS when needed.
Reduce no-shows by sending automated reminders with “Confirm” or “Reschedule” options.
Enable 2-way messaging and conversational experiences with tappable buttons like “Track Order” or “Talk to Agent.”
Share boarding passes, ticket confirmations, and real-time travel alerts securely via RCS—with fallback to SMS for offline users.
Send updates about loyalty points, membership tiers, and redemption offers using branded, interactive messages.
Collect feedback with interactive forms and one-tap rating buttons, encouraging more responses than traditional links.
RCS + SMS Fallback Messaging API
Fast Onboarding & Brand Verification
Campaign-level Fallback Settings
DLT Onboarding Support
Developer Dashboard with Real-Time Logs
Regardless of one or million messages you send, our SMS infrastructure will ensure you that they deliver on time.
Utilization based pricing enables you to get discounted pricing from the beginning while only paying for what you use.
We connect your messaging flow directly over 220+ carriers in 200+ countries for international delivery that is best in class.
We align you with the support and developer team. We ensure that your Authkey.io experience is smooth and successful.