4 ports per card. Supports KX-T7600 KX-DT300 KX-T7400(DPT) series telephones DSS console KX-T0151 and KX-T0155 Cell Stations and Voice Mail. Maximum one per system. Please refer to KX-TDA50G System Capacities Chart #1 prior to configuring a system. Note: to support Bluetooth with the KX-DT300 requires v.5 software version.
