Telecom broadband is the general term for China telecom operators to provide Internet access services for telecom users. It is presented to users with the unified business brand of "Tianyi Broadband", and provides users with seamless broadband access services through a unified Tianyi broadband client, integrating simple and practical applications such as unified address book, short message, Tianyi live broadcast, network disk, security expert, Tianyi video, 189 mailbox, etc., to meet users' high-speed Internet access, email sending and receiving, online stock trading, etc.