Mobile card, family number, 2 yuan per month, two numbers can be set in the province, free of charge for 500 minutes; You can set a number outside the province, which seems to be 8 cents a minute, or 6 cents a minute. This is what I use. As for the set meal, there is no requirement and 20 yuan is not necessarily required. I can also use the Internet subscription 18, with 60 megabytes of traffic per month, 150 SMS and 10 hour wireless wifi, which adds up to a monthly rent of 20 yuan.