I also have/had a second telephone line (two wire) installed which is not doing anything as it's been disconnected some time ago.
Currently the ADSL2+ service is via the old three wire network and clocking up CRC and other asorted errors, it not a clean network.
The second line that was installed some time ago is a two wire connection and is MUCH cleaner when it comes to quality of the line. (Circa year 2000)
I want to install a VDSL2 splitter/filter (http://www.3max.co.nz/) at the demarcation and run the ADSL2 connection on the secondary line leaving the primary line (three wire) for household telephones.
Because of the three line phone connections (master/slave etc) and only two line VDSL2 input, am I about to meet an immovable barrier????
Is this doable?
Did a VERY crude test of the primary(three wire) and secondary(two wire) line years ago, I was able to determine the three wire home network was not up to snuff.
Old three wire network NEVER got a dialup connection above 42Kbps.
New two wire network always connected at a dailup speed of 52Kbps and sometimes 53Kbps.
Already have CAT6 cable running from one end of the house to the other for data needs so not interested in re-cabling the house to remove the three wire telephone lines WHEN an VDSL2 filter 'may' provide a simple solution.