New-build house, what is this box?

[Estate]

I've just bought a new house and from having a look around, this box is installed in the living room wall:





The person we spoke to wasn't certain, but stated it may be a fast fibre box, and despite being unbranded, stated it was from BT. Can anyone clarify this? I'm wondering if this needs to stay in place or if, like I currently have, a normal router is required.

Thanks.

[Estate]

Thanks for the help everyone, looks like a positive! Now, BT just need to find the new houses on their system then we can get started

[Estate]

We don’t have a cupboard under the stairs which may explain it’s chosen position. There is an L shape sofa going there anyway, so shouldn’t be too much of an issue. I’m just happy we have optical fibre, now I just need the developer to confirm that it is “ready for service” before BT can show us on the map as able to connect...