Unicom mobile phones send short messages to mobile users in the United States. What is the format? Are there any spaces, area codes,+numbers and so on? Please help.

His mobile phone is an American network, and he can't receive Chinese short messages. You can only send him short messages in English (that is, you can only send letters, numbers and punctuation marks)

And it must be in English input mode. If you send a paragraph of Chinese in it, he won't get it. Send it to 00 1, and add the mobile phone number.

. He can only send you English, otherwise he won't get it. I've sent and received before. If you still can't get it, it's your phone or

There is something wrong with the settings. I suggest you go to the business hall and have someone adjust it for you. Generally speaking, international short messages are not sent if domestic short messages are normal.

There is a problem. In addition, you can use China Mobile Fetion service, and the other party can receive your message on the computer and send and receive it through the computer.

SMS is free.