Right now, I have to unlock the screen first, then open the phone app, then tap on the Dialing Pad to open it.
<menuitem priority="200" name="pad"> <callback service="com.nokia.CallUI" path="/com/nokia/CallUI" interface="com.nokia.CallUI" method="ShowDialpad" bus="system" autostart="true"> <argument type="string"></argument> </callback> </menuitem>