Step 2: Telephones which operate differently connected through BT TwinTalk
The display of calling numbers is very intermittent when used with BT TwinTalk. This does not indicate a fault with either the Decor 310, or BT TwinTalk.
Some other Caller Display phones will not clear the Caller Number unless they receive ringing which subsequently ceases.
If the operation of your Caller Display phone changes when connected to BT TwinTalk then we would be grateful if you could email us with the details so that we can keep this list complete and up to date.