I find the rages are more likely by text, personally. Too little opportunity to clear up assumptions and misunderstandings.
Lifewriter x
From what I've learnt it depends on the reason why you want to text . If hey are with your replacement then by texting they are off loading all there negative and angry feelings at you . If you want the replacement gone quicker don't do anything
Just don't text them or email or call them nothing ! It makes them rage more in my experience .and you will never move on