This manual is designed for users of Digital Super Hybrid Systems, model numbers KX-TD816 and KX-TD1232. It is to be used after the system is installed and System Programming is completed. The focus is Digital Proprietary Telephones (DPTs); KX-T7420/KX-T7425/KX-T7431/KX-T7433/KX-T7436/KX-T7220/KX-T7230/ KX-T7235/KX-T7250, DECT Portable Station (PS); KX-TD7500, Digital DSS Console; KX-T7440/KX-T7441/KX-T7240, Single Line Telephones (SLTs) and their features.