Telus Business Internet

I am working with a customer who is connected to Telus Pure fiber, having a Nokia ONT, T3200M router and Meraki AP. Customer has static IP's. Now they need to install a firewall, and I am wondering whether I can connect it directly to the ONT and bypass the T3200M router or I have to use T3200M in bridge mode. Also, can I connect the Meraki AP directly to my firewall?