Case 3: Fax Machine And Telephone Share A Single Line (One Phone Number); Fax Seldom Used - Panasonic KX-FB422CX Operating Instructions Manual

Connections and Setup
Case 3: Fax machine and telephone share a single
line (one phone number); Fax seldom used
Your situation
You wish to use the fax machine and an
extension telephone in a different room. Most
calls are phone calls and the fax machine is
mostly used to send documents.
Telephone wiring image in
house or office
Room
Extension
telephone
20
Room
Fax machine
Connections
Connect to LINE.
Telephone
line cord
To a power outlet
(220–240 V, 50/60 Hz)
Power cord
To a single
telephone line
jack