Powered by Meta Meta Official Business Partner
Now with Automated Support

SMS Fallback Guaranteed Delivery for
Critical WhatsApp Messages

In today's fast-paced digital world, communication is everything. Telkosh's SMS Fallback service which uses WhatsApp Business API, makes sure that your most important messages, like delivery updates and OTPs, are always delivered, even if WhatsApp does not deliver successfully. No more gaps in communications. No more missed opportunities. Just trusted messaging every time.

SMS Fallback Illustration
What is SMS Fallback

What is SMS Fallback?

SMS fallback is a feature that automatically sends messages via SMS if your primary WhatsApp channel doesn't correctly deliver the message. SMS fallback ensures that users always receive messages by providing a fallback channel when a user does not have access to WhatsApp, loses or does not have data, or when a message is blocked altogether. Most omnichannel API providers typically implement SMS fallbacks when a fallback channel (like SMS) and the user's phone number have been configured.

Features That Make SMS Fallback
Seamless and Cost-Effective

Enhanced message delivery

Ensures the message gets delivered, in particular for important information...

Multi-channel support

Can be set up for multiple messaging channels like SMS, WhatsApp....

Cost optimization

Connects a lower cost messaging channel and only switches to a higher cost option when needed, while balancing the need for messaging delivery capabilities with potential costs.

Features Illustration
SMS Fallback
Powered by Meta Meta Official Business Partner

Never Miss a Message with SMS Fallback

Ensure every message reaches your customers—even when WhatsApp doesn’t. If delivery fails, messages are instantly sent via SMS, keeping your communication seamless and reliable.

Messaging Apps
Phone UI

Reliable Messaging with SMS Backup

Dashboard

Trusted by 500k+ Businesses

Businesses
Green Phone UI

How SMS Fallback Works

1

Primary Delivery

Message is first sent via WhatsApp, RCS, or push notification.

2

Automatic Detection

If not delivered (no internet, poor network, or app issues), fallback triggers automatically.

3

SMS Fallback

Message is instantly resent via SMS, ensuring delivery without internet.

Deliver Assurance with Every Message

Telkosh's SMS Fallback bridges the gap between online and offline communication. It's not just about sending messages — it's about ensuring reliability, customer satisfaction, and brand credibility across all conditions, seamlessly working alongside Multi-Agent Support to maintain consistent and efficient communication at every customer touchpoint. Keep your communication uninterrupted — even when networks fail.

Get Started Now

WhatsApp unavailable? SMS delivered

FAQs about Telkosh SMS Fallback

We strongly recommend using SMS Fallback for all critical, transactional messages. This includes:
  • OTP SMS (Login/Verification Codes)
  • Account Alerts (e.g., password change confirmation)
  • Urgent Payment/Fraud Alerts
No, Telkosh’s platform integrates SMS Fallback seamlessly into your existing WhatsApp Business API connection.
This is exactly why the Fallback is necessary. The WhatsApp Business API runs on a verified number, so if WhatsApp integrates, it will pull the contact number from your database (which is needed to start the WhatsApp conversation in the first place). So, if the WhatsApp message goes sideways, the system will use that verified number to send the important message via SMS.