Does the printer/scanner/fax have a phone line socket or cable?
Printer should have both, but I think I can only use phone line socket, since I use cable to connect OBI to cable modem, the only left in OBI in phone line socket.
However, see the attached file, I have trouble to add OBI device to google voice number. This OBI device is used for fax machine, NOT home phone, it shows ".... phone handset...", which should not be involved.
Thanks.