SMS Notification is slightly more complicated than the Ringtones counterpart. SMS notification actually can’t be added, only modified. I also recommend shorter file for SMS notification.
Here are the steps I take:
- Trim MP3 files using Audacity (usually SMS notification should be shorter, roughly 3-4 seconds should be good)
- Import the MP3 file to iTunes
- Goto iTunes -> Preferences (for Mac) or Edit -> Preferences (for PC)
- Navigate to Advanced -> Importing tab and set the “Import Using:” to AIFF 5. Find the AIFF file and copy to desktop 6. Change the extension to “.caf”
- SCP to the iPhone using Cyberduck (Mac) or WinSCP (Windows) or any other SCP software
- Navigate to the following directory: “/System/Library/Audio/UISounds”
Rename “sms-received6.caf” to “sms-received_6.caf” to replace the Electronic with custom sound File name mapping to notification name:
- sms-received1.caf -> Tri-tone
- sms-received2.caf -> Chime.caf
- sms-received3.caf -> Glass
- sms-received4.caf -> Horn
- sms-received5.caf -> Bell
- sms-received6.caf -> Electronic
Upload the file on the desktop using the old name of that was changed For example: if “sms-received6.caf” is changed to “sms-received_6.caf”, upload the file using the name “sms-received6.caf”
Choose in iPhone the replaced tone For example: if you replaced sms-received6.caf, then you should choose Electronic
Change one of the “sms-received.caf” file to “sms-received_.caf” where is an integer from 1 to 6 that is least preferrable For example: if you replaced sms-received6.caf, then you should choose Electronic
