My understanding of this is that they will activate the second pair that is
commonly used in the RJ-43 port in your wall. This will allow 2 lines
active to the device.
Changes inside might need to happen if your residence does not have 4 wire
(2 line) compatibility. (IE 2 pairs to the jack vs 1
These are the shortlist I know that support real-time scanning in Linux.
https://secure2.sophos.com/en-us/products/free-tools.aspx
https://www.comodo.com/home/internet-security/antivirus-for-linux.php
https://www.eset.com/int/home/antivirus-linux/
