My friend sent me a short message by fetion, and the reply box showed the words network short message. Does that mean I won't charge if I reply directly?

Whether the message you reply is an online message or not, you can look at the color of the box where you write the message when you reply. If the box is blue, it is a network message, and you can also look at the box when you don't enter text. If you don't enter a network message, it will display the network message in the box.

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