How to set Unicom card to an empty number

For example, there are two ways to set up call forwarding service by consulting Unicom number: 1) Enter the call forwarding menu of mobile phone, select a call forwarding type, then select "Start" and enter the number to be forwarded; 2) Dialing setting with mobile phone: unconditional transfer: **2 1* transfer number #; Shut down or not transfer money in the service area: **62* Transfer number # #; No answer transfer: **6 1* transfer number #; Busy transfer: **67* transfer number #. Tips: Before setting up call forwarding, you need to confirm that the mobile phone card has the corresponding forwarding function.