How to open a family number for telecom mobile phones

to open the family number, you need to bring your certificate to the local telecom business hall, but you can't handle SMS and Internet hall. The number object must be a telecom card, and you can handle it at the local telecom business hall.

For numbers within the same city, you can designate the other party as a family number, and you can enjoy 5 minutes of call discount between family numbers every month. A combination can accommodate up to 5 members, and the same number can only exist in one combination.