TOSHIBA DKT2020-SD 20 Function Keys Digital Speaker Phone Toshiba DKT2020-SD 20 Button Speaker Phone Charcoal 2020SD Refurb ... Please ensure that your original part number matches this exactly, or check with the manufactuer for compatiblity. Customers are responsible for compatiblity. This part is guaranteed to be fully functional, original and authentic. Toshiba DKT2020-SD 20 Button Speaker Phone Charcoal 2020SD Refurb ...