5-60 DBS 576 (USA) issued September 2001 576-50-700Chapter 5. Key Telephone Features Section 700 - OperationRelated Programming• FF1-0-02: BLF Call Pickup• FF4-0-04: FF Key AssignmentConsiderations• If several calls arrive at a DSS/BLF key, the calls are queued and ring on a first-in, first-out basis.• If a BLF key has a second call while busy and off- hook signaling is enabled, the BLF key startsblinking. The call can be answered by pressing the BLF key or going on hook and then off hook.Direct Line AppearancesDirect Line (DL) keys are used to originate and receive calls over specific trunk numbers (DL keyscan be assigned to any trunk number).The LED for a DL key will flash red on an incoming call even if the CO line is set to ring. If anotherextension answers the call, the LED on the telephone will light solid red.OperationHardware Requirements• N/ARelated Programming• FF4: Key AssignmentConsiderations• N/AMulti-CO (MCO) AppearancesDescriptionYou can make and receive CO line calls using a Multi-CO (MCO) key. Each extension can have up to5 MCO keys.An MCO key can be assigned to any of the pooled trunk groups. Pressing the MCO key is the same asdialing the MCO Access Code (usually 9, 81-84).Operation ActionTo originate a trunk call... 1. Press an idle DL key.2. The key blinks green as the call is made.To place a call on Exclusive Trunk Hold (page 133)... 1. Press the DL key.To place a call on System Trunk Hold (page 133)... 1. Press the HOLD key.To transfer a call... 1. Press the HOLD key.2. Dial the destination extension.3. Press the PROG key.
