I don't have a Swisscom _Business_ router, but only an Internet box for home use. Everything runs smoothly there. However, it is important to know that the cams build their own encrypted network with the eufy Base Station. This means that you absolutely need the Base Station, but how it is ultimately connected to the Internet (Swisscom router, etc.) is, I think, of secondary importance.
If you specify "compatible" and have an exact use case with the business router, I can possibly give you more information.