Panasonic Products - Panasonic - Desk/Wall Telephone w/Speakerphone in Base, Corded, White - Sold As 1 Each - Built-in speakerphone with eight-step volume control. - Handset and speakerphone volume and ringer controls. - Integrated data port; programmable dial lock. - Ten-number speed dial memory. - Headset jack. Built-in speakerphone with eight-step volume control. Handset and speakerphone volume and ringer controls. Integrated data port; programmable dial lock. Ten-number speed dial memory. Headset jack.