VoIP number
A VoIP number is a phone number delivered over the internet rather than a mobile carrier SIM; apps can detect this through a carrier lookup and often refuse it for verification.
What is VoIP number?
A VoIP number is a phone number delivered over the internet rather than a mobile carrier SIM; apps can detect this through a carrier lookup and often refuse it for verification.
How apps detect VoIP
Every number belongs to a carrier and a line type (mobile, landline, VoIP). Services query that database before sending an OTP. Google, WhatsApp, PayPal and banks reject VoIP types outright.