At the moment, Videotron only has plans where the modem is loaned OR where you can use a Helix-Fi gateway.
In both instances, however, you can use your own router. For a Helix fi Gateway, you will need to use the Bridge Mode in order to use your own personal router.
Hope this helps!
Our Internet plans currently sold are under Helix, which require the Helix Fi gateway. That device is only offered as a purchase, either with financing or in a single payment, it is not offered as a rental. Our older generation of plans from before used to have loaned devices, but they are not sold anymore. My colleague was mentioning it as a general tip only, Helix does not offer loan/rental options on the device. You are free to buy a used Helix gateway if you find one on your end and activate it with us however.