If your BT TwinTalks do not appear to be working correctly then maybe your telephone sockets are not wired properly.
"One of my phone rings when either my existing number or my new number is called."
If one of the phones attached to a BT TwinTalk rings when both your existing and new telephone numbers are called (and perhaps your other phone does not ring at all) this usually indicates that you have a problem in your telephone wiring. Do not worry it will be easy to resolve and your BT TwinTalk can help.
In order to test your telephone sockets wiring, follow our six step wiring guide: