[kevinsync]

This isn't exactly a landline, but I've got (an older version of) this bluetooth -> telephone gateway [1] and have a few vintage handsets that I'll occasionally hook up to it. Incoming/outgoing calls route through your cell phone (good or bad depending upon your perspective) but the quality is great and it's nice to just sit and talk on a wired handset.

We're never getting back the phone systems of yore, but for me, it's more about replicating the ergonomics of 'the phone call' rather than stubbornly preserving antiquated technology.

YMMV -- some handsets can be finicky, most work great though, and since it's functionally no different than connecting a BT headset, you get some weird added stuff by default (access to contact lists, siri, whatever your software already provides (incoming call blocking, spam filtering, etc))

[1] https://www.amazon.com/Xtreme-Technolgoies-XLink-Bluetooth-G...