Ah right that's good. I am disappointed with how few games seem to use the speaker in any way. So far the only ones I've played that use it are:
Infamous - Not bad as it was used as a spraycan and I seem to recall a lot of the energy effects came through it.
Stick It To The Man - Which uses it really well.
Sniper Elite 3 - Which uses it for the gun reloading sounds.
Fingers crossed they'll use it in Alien Isolation for the movement tracker as that would be a good use for it. Be good if you could combine it with the touchpad in something like GTA5 so the phone rings through the speaker, you swipe across the pad to answer it and the voice come out of it too.