No, PFSense does not support PCIe modem cards.
No, PFSense does not support PCIe modem cards.
I understand your situation and the limitations you're facing. Let's clarify what you can do with your setup. Your goal is to connect two DSL lines directly through your PFSense box without relying on the web interface. Since you're considering a PCIe modem card for dial-up, it’s worth checking if such a device is compatible with your current hardware and network needs. If you need a specific modem, you may need one tailored for DSL rather than general-purpose use. I recommend confirming the requirements with PFSense support or testing with a single DSL connection first to see if performance improves.
I really didn’t know what DSL standard was being used. It seemed there were no expansion cards that could deliver DSL to any system. Probably got mixed up—CenturyLink actually used the regular phone cable for both DSL lines, even though we had to replace the wire from the basement connection point to the modem.