. I use my own router...
.. Fortunately I bought it for under $100 back then rather than paying over $1400 in rental fees. I cancelled the phone line a number of years ago
.. and use an Obihai device with a free Google voice number as the landline.
Everyone loves a deal that saves them money! And exploiting some of these technologies can certainly do that. Home automation tech... has a potential to save a dollar or two as well. But as much as I like saving a buck.... I really think the added safety, security, convenience, and time... is at least equally as important.
That said... I only have 4 non-LED bulbs left in the house.
Unfortunately... these 4... are problematic. My home (built in 1943) has some non-neutral switch wiring. So... I have limited choices in some places.... hence the 4 incandescent bulbs (and WS467 Wall Switches). One of these days....
maybe I'll commit to a long weekend spent in the attic... and rewire the last remaining switches.
Or maybe... not every light in my home needs to be automated.
For me... automation has taken a slightly unexpected turn. My automation is now much more about media, data, schedules, reminders, suggestions, (even companionship).... at home and elsewhere, even when while mobile (like when cycling). I think I am getting more of my Automation ideas from Halo than the automation forums now-a-days.