Samsung iDCS500 DCS (Euro) Keyset User Guide– 2 –the LOCAL key to get a local outside line. If Least Cost Routing (LCR) isused, pressing the LCR key will automatically select a pre-programmed C.O.line according to what digits are dialled. Each line in the system is num-bered—by default—beginning with 701 (or 7001), then 702 (7002), 703 (7003),etc.Direct Station Selection (DSS) keys are programmed to ring specific exten-sions. You can press a DSS key instead of dialling the extension number. ADSS key will light red when that extension is busy (this is called a BusyLamp Indication).DCS (Euro) keysets provide distinctive ring patterns:ß Outside calls have a double ring tone repeated.ß Internal calls have a single ring tone repeated.ß Doorphone calls and alarm/appointment reminders have a short ring tonerepeated quickly.n CALL INDICATIONSThe keys on your phone have light emitting diodes (LEDs). These are tri-coloured LEDs that light green, red or amber (green and red together). Seethe relevant keyset layout diagram (below) for the keyset you are using.Internal calls, also called intercom calls, always appear on your CALL keysand always light green. You can have up to eight CALL keys, but two arerecommended. Remember, you must have at least one CALL key pro-grammed to be able to make and receive calls.Outside calls appear on individual DTS keys, if these are assigned. If an indi-vidual line is not assigned to its own key, it will appear on a CALL key. Youroutside calls will light green on your keyset and red on other keysets.You never lose sight of your calls while they are on hold. They are identifiedwith a green flashing light.Some simple rules to remember:ß Any steady LED indicates the line or feature is in use.ß A fast flashing green LED indicates a new call ringing in.ß A slow flashing green or red LED indicates a call is on hold.ß A slow flashing amber LED indicates a recall to your keyset.