The fields matching the respective network operator can be obtained relatively cheaply through wholesale. If you no longer need them, definitely sell them. You will get rid of them.
Yes, so that the next person has the same trouble as you. I don't find that acceptable. This cabinet can't even be upgraded or retrofitted to the newly required standard. This thing is a total dud. Maybe a tool cabinet.
I am not angry, I have it left over. For me, the question was whether to discard it or still use it. And I was indeed motivated by contributions to sell it. And whoever does not want it does not have to.