Windows Mobile: Reprogramming the Push-to-Talk Button on the AT&T Tilt

You can reprogram the Push-to-Talk (PTT) button on the AT&T Tilt (also known at the HTC 8925). To do so, you will need a registry editor. There are many out there, but the one I like is called TaskMgr, which also performs many other useful operations.

Reprogramming the key is a three step process: 1) Remove the normal PTT functionality. 2) Add the ability to program the buttons. 3) Program the buttons.

After firing up your registry editor, you will need to navigate to HKEY_LOCAL_MACHINE/Services/PTT. Save this key to a file. Then delete the key!

After you do that, perform a soft reboot. This kills the normal PTT functionality. Fire up the registry editor again and navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Shell/Keys. Create a new key named 40C6. In this key, create a value named "Name", with the value of "Button 6".

Then create another key named 40C7. with a value named "Name", and the value of "Button 7".

Exit the registry editor and perform another soft reboot for good luck. I've seen it erase your key entries, but I think the soft reboot after killing the PTT key stops that.

Now go into the normal Start|Settings|Buttons feature. Your new buttons will be assignable now. Button 6 will activate when you press the button. Button 7 will activate when you press and hold. I normally program Button 6 to activate the Voice Speed Dial feature.