New construction: Connection & cabling Internet + TV

The ceiling or wall outlet refers to a power cable that you can then switch, e.g. classically for a ceiling lamp. You would need to request the price for a network cable as a ceiling outlet again. You should also inquire about the price for a CAT 7 duplex cable (two cables), because you currently only have the price for a single cable (duplex should not cost significantly more, as the installation effort hardly changes. You only need a double socket afterwards). I assume that you will later make calls via VOIP (Voice over IP), then you can negotiate that instead of the three telephone lines you take direct CAT 7 duplex cables. We did this in our construction project as well; there was a conduit for telephone in every room as standard, and since we did not need it, we had the network cables laid in the conduit.

The ceiling or wall outlet refers to a power cable that you can then switch, e.g. classically for a ceiling lamp. You would have to request the price for a network cable as a ceiling outlet again. You should also request the price for a CAT 7 duplex cable (two cables), because at the moment you only have the price for a single cable (duplex should not cost significantly more, as the installation effort hardly changes. You only need a double socket afterwards).

I assume that you will later make calls via VOIP (Voice over IP), then you can negotiate that instead of the three telephone lines you take CAT 7 duplex cables directly. We did that in our building project as well; there was a conduit for telephone in every room as standard, and since we did not need it, we had the network cables laid in the conduit.

Good idea, I will mention that. What I have not quite understood yet about VOIP: Does my conversation partner also have to use VOIP so that I can reach him or vice versa? We hardly use landlines anymore anyway, but that would be an exclusion criterion.

No, of course not.

Alright, then I will really do without the 3 telephone lines/sockets. Maybe I can save a few euros that way.

So I will do TV via satellite dish. From there, a coax cable to the utility room, from there distribution to 5 satellite sockets in 5 rooms. As soon as Deutsche Glasfaser is finished at our place, we will additionally have the IPTV option. And in the long term, by installing additional hardware SAT->IP.

For internet, I will now apply for the regular Telekom connection to the utility room within the framework of my ongoing Magenta contract. From there at least 20 CAT7 cables in empty conduits to almost all rooms to the double sockets (CAT 6a? Or are CAT6 sockets also sufficient?).
As soon as fiber is available, I will simply change the router and then be on the booked speed (400k) with the CAT7 cables.

Thank you all, you have helped me a lot!

Every router should be able to handle 400mbit today. With 6a sockets and Cat7 cabling, you are also equipped for 10Gbit.

I would also use CAT6a sockets if I were building new. From the current perspective, this is the standard that will last the longest.

You should even be able to continue using the router with fiber optic. You will probably get a fiber optic modem, and then the router will only be connected to the fiber optic modem without its own modem function.