What's the difference between sending a message in a flying letter and sending a message in a flying letter?

Fetion message refers to the message sent by direct pc to pc or telephone. Like qq, it's free. Of course, if someone does not log in to the task client and displays a small envelope, the server will judge whether the other pc is invisible or offline. If the other party's pc is offline, your message will go directly to the other party's mobile phone.

You don't charge for sending, and others don't charge for receiving, but someone replies to you on his mobile phone, and his mobile phone text message is 0. 1 yuan.

Fetion SMS means that you send him a short message directly by Fetion, and his mobile phone will receive it whether his pc is online or not. You don't want money, but the other party's mobile phone replies for money.

2. If it is a mobile phone client.

Fetion message and Fetion message, you don't need money, just charge the traffic fee.

Generally speaking, Fetion messages will be judged by the server. If the other party's pc or mobile phone logs in to Fetion, it will be sent directly to the client, and the Fetion message will be sent directly to the other party's mobile phone by SMS.