SamsungDCS-408 & 408i Keyphone System Installation Manual– 34 –Term DescriptionPORT (CIRCUIT) A circuit for connecting and operating an individual trunk, digital key-set or an analogue telephone.POWER FAILURE TRANS-FER (PFT)A function for directly connecting some trunks to particular analoguetelephones when power is interrupted to the DCS-408/408i digitalkeyphone system, thereby allowing a call to be made regardless ofthe status of the system.RINGA sound provided to inform a user of an incoming call. There are anumber of different rings: station/trunk ring, off-hook ring providedwhile a call is being connected, etc.SINGLE LINE INTERFACE(SLI) PORTA port for connecting an analogue telephone generally used at homeor in the office.STATION A telephone line connecting a DCS-408/408i digital keyphone sys-tem and a user’s phone.STATION MESSAGE DETAILRECORDING (SMDR)A function for outputting information for trunk calls through the DCS-408/408i digital keyphone system using additional equipment suchas a PC or a printer.SYSTEM PROGRAMMING(MMC)Programs (Man Machine Code) for setting up the operating systemwith the various functions and parameters provided by the DCS-408/408i digital keyphone system, to be suitable for a user’s re-quirements.TONESound for informing a user of the operating state of the DCS-408/408i digital keyphone system. There are a number of tones: dialtone, ring back tone, busy tone, etc.TRUNK A telephone line connecting a telephone exchange and the DCS-408/408i digital keyphone system.VOICE MAIL (VMS) A system for recording and storing voice messages.