Suddenly, the mobile phone message can't send pictures. What's the matter?

Regarding your first question, there are several possibilities:

1. The other party set up a firewall, and your short message was successfully sent out, but someone else's mobile phone refused to receive it. Charge as usual, showing that the delivery was successful, but the receipt received was a failure.

2. The other party's mobile phone is turned off, or there is no signal, and the short message you sent is not received by the other party. However, if the time exceeds the validity period of the short message set by the other party, you will also be prompted to send it successfully, but the receipt you received is a failure.

3. Communication problem, that is to say, it has nothing to do with both parties' mobile phones, which may be caused by poor signal or communication error.

Secondly, as long as your mobile phone shows that the transmission was successful, you will be charged. Whether the other party receives it or not. That is to say, suppose you send a short message to a stopped number, as long as it is successfully sent, you will be charged.

Thirdly, short messages are local, long-distance and roaming. The charges for sending and receiving are the same. So, how do you calculate the SMS fee locally, and how do you calculate it when you go abroad? < P > I hope it can solve your problem.