What if the company applying for a credit card doesn't have a landline number?
Users can fill in the landline numbers of relatives or friends. After filling in the landline number, the bank will call the landline phone for verification. As long as someone picks up the phone and answers the question correctly, they can pass the phone verification. If the mobile phone is verified, it will help to pass the credit card approval. If the user does not fill in the landline number, or fills in the landline number at will, he cannot dial. If you can't make phone calls, you can't directly approve credit cards.