The VoIP Lounge New replacement handset for Toshiba DKT3000 series phones in charcoal. DKT3007SD. DKT3010-S, DKT3010-SD, DKT3020-S, DKT3020-SD. Includes handset curly cord. This is NOT a universal handset, and is only compatible with the specific models of Toshiba phones listed above. Quantity orders may be bulk packed for shipping.