A system and method that the telecom users use the virtual number based on the value added service connect code to realize calls. The system is composed of the mobile phone network and/or the stationary phone network, the service support device, the phone terminal. Thereinto the service support device mainly includes the service flat-roof, the database and the fare account server. When the mobilenetwork or the stationary network has the ability of the intelligent network, the service flat-roof and the database are both set in the service control point SCP. This invention can make the serviceusers hold and use two or more than two virtual number at the same time under the condition of holding only one terminal (including the mobile phone, the stationary phone or the small well-information). The use of these virtual numbers not only digs the new number source, and enlarges the using number range of the telecom users, but also that the new virtual numbers applied by the users won't impropriate the former number source of the stationary phone or the mobile phone such as the MSISDN, and won't have any effect to the primary telephone number numbering plan.