I want to port my home phone to Google Voice and am aware of the home to mobile to GV process--call it "number A". I already have an existing Google Voice telephone number (call it number B) that I've used for years and don't want to discard. I've already determined that Google won't let you add another Google Voice number as a phone to ring.
So it's my understanding that I'd need to provision my Obi device with three accounts: One for number A, one for number B, and one for 911.
I just bought the OBi100, and it appears only to allow provisioning two accounts. I assume I need to return it and replace it with the OBi202 because it supports up to four accounts. It's not too clear to my why I should need a new piece of hardware just to add a third account. I have no use for a second analog line, as my cordless phone system only supports one line.
Is this correct that I have to buy an OBi202, or is there a way to hack a third account onto an OBi100?