How to send text messages on the island where you write letters?

The following are the steps to send SMS to the island:

1. Open the letter island application and enter the main interface.

2. Click the "Send SMS" button at the bottom of the screen to enter the SMS editing page.

3. On the SMS editing page, enter the SMS content and the mobile phone number of the recipient.

4. Click the "Send" button at the bottom of the page to send the email to the recipient.