Why does Apple's mobile phone ring?

Apple phones can set ringtones through AISI Assistant, as follows:

1. Download the AISI Assistant app on your mobile phone, then open the AISI Assistant software and click Open app.

2. Click to enter, click the "Discover" button at the bottom of the page, and find the "ringtone" in the "Discover" page.

3. In the "Ringtones" page, you can select a ringtone in "Recommendations", or select "My Ringtones" at the bottom of the page or click the magnifying glass to search.

4. After selecting your favorite ringtone, click the "Download" button to download the song.

5. After downloading, a window will pop up on the page, and click "Synchronize Now".

6. After synchronization, start AISI Assistant and click the "Settings" button.

7. On the "Settings" page, just click the "Sound" function.

8. On the Sound page, find the Phone Ringtone and click it.

9. Finally, in the ringtone, find the ringtone you downloaded. Here, take the bell of "Lisa Ono" as an example. After clicking, there is a small checkmark in front, that is, the setting is complete.