Filesystem:/System/Library/Audio/UISounds

Overview
Audio files used by the user interface for various events.

SMS
 ReceivedMessage.caf (Only played when the Messages app is open) sms-received1.caf "Tri-Tone" sms-received2.caf "Chime" sms-received3.caf "Glass" sms-received4.caf "Horn" sms-received5.caf "Bell" sms-received6.caf "Electronic" SentMessage.caf (SMS sent)</li> </ul>

Mail
<ul> mail-sent.caf "Sent Mail"</li> new-mail.caf "New Mail"</li> </ul>

Phone
<ul> dtmf-0.caf</li> dtmf-1.caf</li> dtmf-2.caf</li> dtmf-3.caf</li> dtmf-4.caf</li> dtmf-5.caf</li> dtmf-6.caf</li> dtmf-7.caf</li> dtmf-8.caf</li> dtmf-9.caf</li> dtmf-pound.caf</li> dtmf-star.caf</li> Voicemail.caf "New Voicemail"</li> </ul>

Input device sound cues
<ul> Tock.caf (Keyboard click)</li> <li>begin_record.caf (Starting audio recording)</li> <li>begin_video_record.caf (Starting video recording)</li> <li>photoShutter.caf (Picture taken)</li> <li>end_record.caf (Ending audio recording)</li> <li>end_video_record.caf (Ending video recording)</li> </ul>

Others
<ul> <li>beep-beep.caf (External power connected)</li> <li>lock.caf (Device Locked)</li> <li>shake.caf (Shake to Shuffle)</li> <li>unlock.caf (Device Unlocked)</li> </ul>

Voice Control
<ul> <li>jbl_ambiguous.caf (Multiple matches found)</li> <li>jbl_begin.caf (Waiting for user input)</li> <li>jbl_cancel.caf (Cancel)</li> <li>jbl_confirm.caf (Executing command)</li> <li>jbl_no_match.caf (No match found)</li> </ul>

iPod Touch 1G
<ul> <li>sq_alarm.caf</li> <li>sq_beep-beep.caf</li> <li>sq_lock.caf</li> <li>sq_tock.caf</li> </ul>

(Apparently) unused
<ul> <li>ussd.caf</li> <li>short_double_high.caf</li> <li>short_double_low.caf</li> <li>short_low_high.caf</li> <li>middle_9_short_double_low.caf</li> <li>long_low_short_high.caf</li> <li>low_power.caf</li> <li>RingerChanged.caf</li> <li>SIMToolkitCallDropped.caf</li> <li>SIMToolkitGeneralBeep.caf</li> <li>SIMToolkitNegativeACK.caf</li> <li>SIMToolkitPositiveACK.caf</li> <li>SIMToolkitSMS.caf</li> <li>ct-busy.caf</li> <li>ct-call-waiting.caf</li> <li>ct-congestion.caf</li> <li>ct-error.caf</li> <li>ct-keytone2.caf</li> <li>ct-path-ack.caf</li> <li>Tink.caf</li> <li>alarm.caf</li> </ul>