What is the secret number?

Private number refers to the real number of the caller or called party hidden in the call or SMS service, also known as private number, private virtual number, private trumpet, unknown incoming call, unknown number, etc. These numbers are usually dialed using the VoIP software of the mobile phone, so they will not be displayed. The main function of privacy number service is to protect users' privacy and prevent personal information from being leaked. This service is very common in online shopping and other scenarios, and users can use their private numbers as login accounts without affecting their privacy.