What about the telecom number? Is there an extra charge for home-school communication?

According to the description, the SMS code of home-school communication is different in different places. Generally speaking, schools will provide passwords, and there is a charge for this service, which will be collected by China Telecom.

"Home-school communication" is an advanced educational network interactive platform developed to realize rapid and real-time communication among schools, families and teachers. It is a modern information management system integrating computer technology, Internet technology, wireless communication technology and attendance information technology. Using this platform, both home and school can transmit information in a timely and convenient manner, effectively solve the contradictions and problems of difficult communication between home and school, enable students to get caring services anytime and anywhere during their growth, provide convenient, fast and efficient communication channels for schools and class teachers, and speak freely, thus fully realizing the educational pattern of harmonious co-education among society, schools and families.