Explanation of terms in industry short messages, such as direct connection to secondary interface client.

The simple explanation of direct connection in sms channel is the direct connection between operators (China Mobile, China Unicom and China Telecom) and sms channel! Send SMS directly to the operator server!

Secondary interface refers to the interface developed by a company based on its own SMS group sending platform on the basis of direct connection with operator sms channel! For third-party companies! The short message submitted by the third party company first passes through the server of the first party company and then is submitted to the operator server!

A client, or client, refers to a program (which can be understood as yourself) that provides local services to customers corresponding to a server.