What does it mean to move a virtual number?

Mobile virtual number is a special telephone number, which is not issued by traditional communication companies and usually has a longer or shorter number sequence than conventional telephone numbers. This number sequence can usually answer and make calls, which is similar to the function of ordinary telephone numbers. Mobile virtual numbers can be used in many ways, including mobile applications, e-mail and instant messaging software. They are usually used in VoIP services, such as Skype, which allow users to communicate by phone or SMS without using real numbers, thus helping to protect users' privacy. In addition, the mobile virtual number can also be bound to the physical phone, so that the incoming call can be transferred to the user's ordinary phone, which can save money in some cases, such as making international calls.