Can I withdraw the message?

After all, SMS is not the callback function of QQ and WeChat. SMS is sent through the service provider's relay station. If SMS has callback function, it is necessary to realize instant communication between users and service providers. As we all know, it is necessary to contact the communication service provider.

Then when you find your message, the person who received it may have seen it, so there is no need to withdraw it. To establish instant communication between communicators and communication service providers, more procedures and service personnel are needed to maintain it.

In this era of information exchange, there is no need to spend so much manpower and financial resources to do this, and it is impossible to realize the function of SMS cash withdrawal.

Current situation of SMS development:

Short message is a telecommunication service in digital mobile communication system. It is a non-real-time and non-voice data communication service to transmit text or digital short messages through the signaling channel and signaling network of mobile communication system.

SMS can be initiated by mobile communication terminals (mobile phones), SMS platform servers of mobile network operators, and network service providers (including ICP and ISP). ) interconnected with the SMS platform of mobile operators.

Although sending and receiving point-to-point messages through mobile terminals occupy the mainstream position in the technical means to realize the short message service function, fixed telephones, PHS and the Internet are becoming new tools and carriers.