@black_alibaba
The ones that the operator himself offers?
Instead of their hardware, you will not put anything else there, it must be their modem, modemorouter.
All their devices work the same, what you choose, you still do not have access to the configuration in the GUI.
Ask them if they have a Cisco 3208, 3212 modem - it's a pure modem without wifi so you will still need your own router.
Such a set is the best solution - on your router you configure whatever you want, you set up wifi, signal strength, port forwarding, etc.
The ones that the operator himself offers?
Instead of their hardware, you will not put anything else there, it must be their modem, modemorouter.
All their devices work the same, what you choose, you still do not have access to the configuration in the GUI.
Ask them if they have a Cisco 3208, 3212 modem - it's a pure modem without wifi so you will still need your own router.
Such a set is the best solution - on your router you configure whatever you want, you set up wifi, signal strength, port forwarding, etc.