Panasonic KX-TDA3161 4 Port Door Phone Card - Refurbished

The Panasonic KX-TA 3161 4 port door phone card allows you to connect up to 4 of the KX-T7765 door phone units to your phone system. The KX-TA 3161 is also a door release card and allows electronic door entry control (this will require door access equipment to work)