How does Dongguan Unicom open the weather forecast?

Guangdong Unicom's mobile phone weather forecast service mainly has three functions: morning weather, evening weather and on-demand weather. The cost of mobile phone weather forecast is 2 yuan per month. The opening mode is also very convenient: users write a short message "1 1" and send it to 10620 12 1 to customize the local evening (morning) weather service; Write short message "1 1+ city area code (AM)" to customize the city evening (morning) weather service; Send the message "22" to 10620 12 1 to order the latest local weather forecast. Write a short message "22+ city area code" and send it to 10620 12 1 to request the latest weather forecast of the city.