What text message does the new migrant students in Guang 'an City, Sichuan Province send homework to?

Education, wisdom and campus service. At the beginning of the school term, the school teacher informed the class WeChat group that parents can voluntarily open Guang 'an mobile and educational smart campus service, with a function fee of 15 yuan/month, providing functions such as "parents can receive the arrival and departure time and photo information of their children by SMS". Guang 'an Mobile's new task in Sichuan Province is to educate smart campus services. China Mobile is a mobile communication operator based on GSM, TD-SCDMA and TD-LTE networks.