Turn Flash Calling Losses into SMS Revenue
What is Flash Calling?
Flash calling is an authentication method used by apps and services to verify a user’s phone number via an unanswered voice call, instead of sending a traditional SMS One-Time Password (OTP).
How it works:
- The app initiates an automated voice call to the user’s phone.
- The call is disconnected before the user answers.
- The app detects the caller ID number, which acts as the “verification code.”
- If the correct number matches, the phone number is verified - without a message ever being delivered.
Why Is Flash Calling a Threat for Mobile Network Operators (MNOs)?
Why Enterprises Use Flash Calling
- Cheaper: Voice calls (especially missed calls) are less costly than SMS.
- Faster: Often quicker than waiting for SMS delivery.
- Reliable in Some Regions: SMS delivery can fail in regions with grey routes or spam filters.
- Consumer-Friendly: No need to type a code manually; verification is automatic.
This cooperation has enabled us to better control A2P traffic as regards unsolicited traffic/SPAM and fraud traffic.”
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What Can MNOs Do About It?
We offer MNOs a significant opportunity to achieve more with their networks while providing the service and revenue they deserve. Leveraging decades of expertise and innovative solutions, we protect your bottom line and fuel your expansion.
Start Recovering Lost Revenue Today
Flash calling is not inherently malicious, but without detection or commercial agreements, it poses a serious threat to MNO revenues and control over the A2P messaging ecosystem.
MNOs that act early to detect, monetize, or mitigate flash calling will protect both their network value and customer experience in a rapidly shifting authentication landscape.
