Toshiba DADM-2020 20-Button Add-On Module (Charcoal, Refurbished)Toshiba DADM 2020 20 Button Add On Module The Toshiba DADM 2020 Add On Module is a 20 button expansion unit designed for compatible Toshiba business phones. It provides additional programmable buttons with LED indicators, allowing users to manage more lines, extensions, and features efficiently. Ideal for receptionists, administrative staff, and high call volume environments, this module enhances productivity by offering quick access to frequently