Customize Notification/Push Message sound
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 v188.8.131.52+ for Apple and TPControl v184.108.40.206 for Android.
To implement, add your preferred sound resource named "TPCNotificationSound.wav"
to the TP4 file resources within TPDesign4.
Sound playback length is determined by the operating system e.g. a typical restriction limits playback length to a maximum of 30 seconds.