How does Unicom send short messages to LA in America? How much is the charge? International calls have been made.

The method of sending international short messages is as follows:

1. If you send short messages to Taiwan, Hong Kong, Macao and other countries or regions except Chinese mainland when roaming at home or abroad, the sending format is: 00+ country code+other party's number;

2. If you send a short message to Chinese mainland during international roaming, please enter the number of the other party directly in the sending format.

The tariff for 3G users to send international short messages in China is 0.8 yuan/piece, and domestic reception is free.