Yes, the phone jack, that I plug the cord into, is working before when I have DSL service. I used this phone jack for DSL internet, so I know it should works! May be the OBi setup problem??
Update: Today, I checked the wall wiring continuity, the 2 connections are good between my dining room and bedroom. There are 4 wires inside the phone cable, my phone uses 2 middle wires (#2,3) and they have been checked good. So the problem definitely in the OBi setup! I want to use the wall phone jack and the OBi phone port but no luck, no tone in other room!!!! Please HELP!!! Thanks in advance.
-Dennis