Apple's default ringtone for SMS.

You can use goldwave conversion to transfer the converted ringtone to the system/library/audio /uisounds of winscp or 9 1 mobile assistant's mobile phone.

Replace the original file under the folder,

Please pay attention to backup the original SMS ringtone to restore the white apple. 9 1 There is also a short message ringtone in the assistant. You can look for it, but the sound quality is not good. . .