Can iphone transfer notifications send actual audio data to play, just the filename, or is it handled by the app?
And does it cache it locally?
I ask because I am wondering if it is possible to change the push notification sound over SSH by replacing the application sound.
My question is specifically about how the push notification API works. Does it send a .caf (aiff) binary to play the phone every time?
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The file is not being sent. You can add a sound name for a file that is stored in your application that you want to play when a notification arrives. For more information, see the Apple Push Notification Service Programming Guide .
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