The 4th pic with the infinity broadband connection coming out of the top of the box my friend
Do you have the BT Home hub plugged into the top socket, and the phone plugged into the bottom one? No microfilter is needed.
Extension wiring does not carry the broadband signal unless you use the data extension pair as described. It really intended for use with an RJ11 data extension cable, with an RJ11 socket at the end.