private static void PlayNotificationSound (String soundName) {
if (!string.IsNullOrEmpty(soundName))
{
// Assuming that the sound filename received (like sound.caf)
// has been included in the project directory as a Content Build type.
var soundObj = AudioToolbox.SystemSound.FromFile(soundName);
if(soundObj != null) {
soundObj.PlaySystemSound();
} else {
SystemLogger.Log (SystemLogger.Module.PLATFORM, "it was not able to play the specified sound: " + soundName);
}
}
}