Yeah, not clear, but could be right. Still, it's a nice service anyway and I bet most phones with Caller Display will be text compatible eventually. Even with the ability to have text as a voice message it's pretty cool to be able to text a landline (as long as it's BT

).
The point was though that Caller Display does have it's uses so it shouldn't be something ignored as a service that's "not in demand" by NTL.