Can I connect an analog phone to a digital system without using the XDP jack?
Sure. First, some background… Each phone jack in a Panasonic digital system has the usual green, red, black and yellow wires. The black and yellow wires are considered the DATA PAIR, and carry power plus digitized voice and information that a digital phone needs for full functioning on all the lines connected to your phone system. A digital phone will work just fine with just two wires (one pair). The green and red wires are considered the VOICE PAIR, and this pair is all that is needed for an ordinary single-line phone, or a modem, fax machine, credit-card terminal, answerer, etc. A single-line device can have access to all your lines, intercom, and most features. When a digital phone is plugged into a 4-wire jack, the analog circuit from the green and red wires is passed through the body of the phone to the XDP jack on the back of the phone. • Altho the jack is located on the phone, its circuit is distinct from this “host” phone, and anything plugged into the XDP can operate indepe
