What's the difference between "sending message" and "Fetion short message" in the new version of Fetion?

"Sending a message" means that after your mobile phone logs in to Fetion, you receive short messages from other mobile phones, because ordinary messages will also be received by Fetion after your mobile phone logs in to Fetion.

"Fetion SMS" is a message from Fetion, or a message directly returned by the other party after you send it by Fetion on your mobile phone.