What's the difference between point-to-point and mobile Monternet SMS and virtual network SMS?

Peer-to-peer mode refers to users who are in the same carrier as you. For example, if you are a mobile user, the relationship between all other mobile users and you is an intranet user. If the other operator is China Unicom, China Telecom, etc. The relationship with you is called internetworking. Monternet SMS refers to the SMS sent by value-added service providers. The other party's number is the service number, which does not start with +86 13, +86 15 and +86 18, such as +86 106 xxxxx. This kind of short message usually includes customization, on-demand (), STK on-demand, STK customization, help information, etc. Among them, peer-to-peer includes short messages from VPMN users. Short-number dialing belongs to the voice category, and short messages cannot be charged, so short-number dialing is charged.