What's the difference between querying weather 96 12 1 and121?

According to the reply from the staff of the Municipal Meteorological Bureau, if you call 96 12 1, you will be charged a consulting fee. The Provincial Meteorological Bureau calls 12 12 1 for weather forecast. There is no charge. However, the telecommunications and mobile sectors charge for basic calls. So 12 12 1 is more economical, and it is more economical to make a weather forecast.

Please accept it, thank you!