4
Install Your Modem Router
A microfilter filters DSL interference out of standard phone equipment 
that shares the same line with DSL service. Example devices are 
telephones, fax machines, answering machines, and caller ID 
displays.
1.  Connect the ADSL.
a. Install an ADSL microfilter between the phone line and the 
phone.
b.  Connect the ADSL port of the modem router to the ADSL 
port of the microfilter
c.  Use an ADSL microfilter for every phone line in the house if 
your modem router and telephone connect to the same 
phone line.