Path to dialer application

[faustt]

Sorry for the vague title. I didn't know how else to word it.

Once in awhile I'll get a notification saying my memory is low and I need to close something to free some up. On the list there is usually a few apps labled as just "Phone". I'm guessing this is the dialer program and I just didn't close them properly by hitting the X. When this happens I don't think I've ever been able to close anything, the phone is just locked up and I have to soft reset.

So... I'm trying to write my first mortscript bound to the end button to kill the phone application. I just don't know the name or path of the file. Can anyone point me to the location? Or a more simple fix to this annoying problem.