How to switch Bell modem to Helix Pod

Long story short, I’m still subscribed to both internet services (Bell and Vidéotron). I still have the Helix Pod at home and the Bell router is what’s currently connected. I was told Vidéotron that I could simply unplug the bell router and connect the Helix Pod and that it should work since I’m still in service with Vidéotron. However the coax cable converts into a wall plate that has 2 telephone wires that provides the internet which the Bell router uses. Would I be able to turn this into a coax port at home or would I have to call a technician? Thanks.