What is the concept of peer-to-peer SMS?

Peer-to-peer SMS is an end-to-end text information service form in which users send or receive text or digital information directly through mobile phones or other telecommunication terminals, and send and receive it between mobile phones. The forms of peer-to-peer short messages include intra-network short messages, inter-network short messages and international short messages. The most basic use of point-to-point SMS is to realize the mutual communication between two or more points, which is what people usually call text chat. There are three main types of network short messages: China Mobile Point-to-Point means mobile to mobile short messages, Unicom Point-to-Point means Unicom to Unicom, and telecom Point-to-Point means telecom to telecom. Like moving to Unicom, Unicom to telecommunications and so on. These are all Internet messages and point-to-point messages.