I was thinking that there should not be any huge technical problem with making an FXS interface for the raspberry pi, and I did find a USB adapter which I might have been tempted to to try, but it's a little expensive and only supported 0.7 REN (ringer equivalency number) which might not be enough to power the mechanical ringer on an old phone. Further searching did turn up the OAKR2 HAT though ( https://switchpi.com/oakr2-module-specifications/ ) and it looks like the schematics are on github.
I did something similar to this, and ordered a converter from Australia called DialGizmo, that could handle the two types common here, and probably could be configured for a New Zealand phone as well. Was harder to find reasonable PoE powered SIP adapters. :)
Interesting, I think production by IKEA is the only feasible direction for producing and selling this as people's homes are too varied for any single configuration to work.
It looks very nice. I might be willing to spend ~1K on this but only if it exactly fits my needs, and even within just my current residence the window sizes and ceiling heights are dramatically different from room to room.
Speaking of which they should offer an ORI configuration where the back office wall is open to an exterior window so that it is more suitable for a corner room with two exterior walls.
From a cursory look, this is more a 10k than 1k piece of furniture. The hinged cabinets alone would cost significantly more than 1000$ (the materials aren't stellar, however, especially the laminate wood, ugh).
If you do want to play with it as a wifi repeater, perhaps another OS is a good idea? Something like openwrt https://wiki.openwrt.org/toh/raspberry_pi_foundation/raspber... should be quick to write to the SD-card and quick to boot. Raspbian may be a bit heavy.
Interesting that cafestol has also show anticarcinogenic and neuroprotective traits, so this may be one of those things where recommendations continually change over the years as groups study different effects.
