Hi clivevaughan,
A warm welcome and thanks for posting on our community forums. We're sorry to hear that you have no dialling tone when you have plugged your handset into the TEL1 port on your hub.
As our valued member @jem101 has advised, if your hub status page states telephony disabled, it seem the switch over has not taken place.
We would need to investigate why you have not been switched over and replace an order for you if this is the case.
In the meantime, please plug your handset back in to your master socket.
I will pop you over a private message to take some details and check what has happened. Please click on the purple envelope to accept the chat.
Kind regards Jodi.