I think we are saying the same things. Perhaps I am using the word, phone jack, incorrectly.
I have an analog phone connected directly to the OBI. Tested it. It works. Should I disconnect it before connecting the Obi to the wall phone jack to test the house phones? I want to use my various analog phones throughout my house with the internet phone service through Obi then disconnect my phone service from Verizon.
I'm just trying to identify why my house phones won't work.