How does China Unicom use SMS to open GPRS? How to operate?

Different regions have slightly different treatment methods. Take Anhui as an example. The specific methods are as follows: First, please confirm with the school class teacher or children whether the school has opened the Unicom home-school communication service. If this service is launched, you can apply for it through SMS customization and registration form acceptance. The specific customization method is as follows: 1. Short message customization: edit the short message JXT (the abbreviation of the initials of the three Chinese characters "Home-School Link") and send it to 660. 2. Acceptance of industrial and commercial registration form: You can fill in the industrial and commercial registration form at the school business agency, and the business agency will handle the business for you.