No, you won't be able to make full use of this device by directly replacing the Swisscom Internet Box 4, as it doesn't fully bridge with third-party routers like this one. An alternative is to connect the device's WAN port to the Internet Box 4's LAN port (in dual NAT), but this may limit performance and some advanced functions, as observed with Swisscom connections limited to 200 Mbps despite a 10 Gbps fibre. The information available does not confirm perfect compatibility in bridge mode; I advise you to consult the Swisscom community or Ubiquiti for feedback specific to your Wingo subscription.