What is the essence of pushing SMS?

Wappush can send a link of a site or a service to a mobile phone that supports wappush function through SMS, so you only need to read this short message and open the link in the short message to access the service directly. Therefore, wappush realizes the combination of SMS and wap services. The current push SMS is the general advertising MMS.

Ivr is an interactive voice response service, which has nothing to do with SMS. It means that mobile phone users dial the designated number to get the information they need or participate in interactive services, such as chat rooms or making friends. Similar to the well-known fixed telephone voice service at present.