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Business guide ·
How to Sell Test Phone Numbers to App Developers and QA Teams
Developers need real numbers in many countries to test SMS sign up flows. How to turn that need into steady business with your own verification store.
Business guide ·
How to Find Customers for Your SMS Verification Store
Who actually buys verification numbers and where to find them. Practical ways to get the first customers for your telly.cat reseller store.
Business guide ·
How to Start Your Own SMS Verification Store With telly.cat
A step by step guide to launching your own branded store for verification numbers with a telly.cat reseller panel. No stock, no servers, your prices.
Why You Shouldn't Give Your Real Phone Number to Every App
Your phone number links accounts, attracts spam and unlocks SIM-swap attacks. When to keep it private and when a separate verification number makes sense.
SMS Codes vs Authenticator Apps vs Passkeys, Which Is Safest?
SMS codes, authenticator apps and passkeys all add a second step to logging in, but they protect you differently. A plain comparison and what to use where.
Verification Code Not Arriving? The Most Common Causes and Fixes
Waiting for an SMS code that never comes is frustrating. The usual reasons codes fail, from rate limits to number type, and what to try next.