I don't believe you can use it - alone!
I am not too familiar with the various BT Home devices, just the Business ones. I do have one suggestion that you can try.
Set the BT Hub3 to BRIDGE mode and the connect it to the modem through the Fibre/WAN port. Being in Bridge mode allows it to provide the login details to the modem and then pass all traffic back to your other router (Voyager). Cannot guarantee it will work but if you like the voyagers set up, it might be worth a try. If it fails, use the BT Hub3 initially until you can get one you like.
Connect the BT Hub 3 to te modem and
M H C
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