The ability to customize the notification (or push message) sound issued when the device receives a TPControl push message (while TPControl is not in the foreground), is supported in TPControl v2.6.1.0+ for Apple and TPControl v2.6.0.2 for Android.

To implement, add your preferred sound resource named "TPCNotificationSound.wav" to the TP4 / TP5 file resources within TPDesign4 / TPDesign5.

Sound playback length is determined by the operating system e.g. a typical restriction limits playback length to a maximum of 30 seconds.