Easy to switch to homephone?

[#1]

I currently pay line rental to BT, call costs to Talk Talk (CPS) and have BBYW2 with Plusnet.
If I follow the signup path on the PN website will PN then handle the transfer of the line rental from BT and the removal of the Talk Talk CPS?  Do I need to contact either of the other companies first?
Thanks for your help,
Rob

[#2]

Hi Rob,
That's right, we'll handle the transfer and there'll be no need to let your existing WLR supplier know of the change.
I did exactly the same when I moved from BT to PlusNet.

[#3]

Thanks James (or should that be Edgar? Yaaarrrr!!!)
Let's hope it's that easy