I've read the Call Protect Guide but it doesn't detail anywhere, other than registering with My BT, whereby a blocked number can be deleted from a Personal Black List. This was very helpful. You certainly cannot delete from 1572 and the handset.
I've read the Call Protect Guide but it doesn't detail anywhere, other than registering with My BT, whereby a blocked number can be deleted from a Personal Black List. This was very helpful. You certainly cannot delete from 1572 and the handset.