@ Rick.
I actually put one in my mother's house ( those 7 months a year when she does not live in my place) and it works surprisingly well, she gets the Obi 100 which is very resilient and has less issues than my 202. She has next to GV Localphone as SIP provider and can also use it from her cell with one number free calling circle number whenever she is on the road or should the system go down. true, she would not be able to set it up and maintain on her own but with my supervision and minimal knowledge it works just fine. My neighbors who have ATT u verse phone service were without phone for 4 days now , so the 'better' providers are not all that better and the classic POTS is on the way out.