Can we..

Yes, but there is a hard way of doing this X,x
Here is the show of it: http://www.mpgh.net/forum/404-call-d...unlocking.html
No, no help or so but...
You need to update the addresses and you're good to go.
But it will be 255 ways to do it.
And that is like an O,o

But, I think that I saw a hack where this have been done.
http://www.mpgh.net/forum/404-call-d...er-3-01-a.html
Look for his updated version. (Not here on MPGH.)
I think he have added that function.

But I can't say for sure