SMS sets the function of grouping data.

At present, it is like this. You can send text messages to your mobile phone to keep warm.

When everyone uses this, will you charge a monthly fee? I don't know, this is also a potential way to make money by mobile. At the same time, this is also the competitive advantage with China Unicom. By using SMS discount to attract the public to use the mobile network, more people can make money from other aspects.