No In my side of the POTS has the the following currently, plus the blue cable that is plugged into the small box.

This is the Pots box current config.

https://i135.photobucket.com/albums/q135/Kamakzie/IMG_1534t1.jpg

This is where the blue cable is connecting currently.

https://i135.photobucket.com/albums/q135/Kamakzie/IMG_1533t1.jpg

I don't get why they make me use both??