电话铃声怎么改

To change your phone ringtone, you can follow these general steps:

1. Go to the settings on your phone.
2. Look for the "Sound" or "Sound & Vibration" option.
3. Find the "Ringtone" or "Phone Ringtone" setting.
4. Select a new ringtone from the list of available options or browse for a custom ringtone file on your device.
5. Save your changes and exit the settings.

If you need specific instructions for your phone model or operating system, please provide more details so I can assist you further.