152CALL BACKIf Called Station is BusySTEP 1: Press the CALL BACK key. Receive a ser-vice set tone.– OR –STEP 1: Press the Flash key and enter “Call Back” ac-cess code.STEP 2: When both parties become an idle state, call-ing party's phone rings. Calling party wouldgo off hook and hear ring back tone.The called station would then be ringing.STEP 3: The connection is established when thecalled party answers.Using Soft KeySTEP 1: Press the CallBack soft key and receive aservice set tone.STEP 2: “CALLBACK SET” is displayed and the Call-Back soft key flashes on the display.TO SAVE AND REPEAT A NUMBERTo SaveSTEP 1: Press key.STEP 2: Dial the desired telephone number.STEP 3: Press the Save&Rep key. The dialed numberis now stored. The Save&Rep key’s LEDlights.– OR –STEP 3: Receive an internal call.STEP 4: Press the Save&Rep key. The number isstored in memory.STEP 5: The Save&Rep key’s LED lights.DT830 DT430/410Called partyCALLBACK SET 20001:25 PM MON 11 MAY 2015Called partyCALLBACK 20001:25 PM MON 11 MAY 2015Called partyCALLBACK 20011:25 PM MON 11 MAY 2015Note: Call Back may be programmed by the TelephonyServer administrator on a Programmable featurekey or by the user on a One-Touch Speed Call-ing key.CALLBACK SETMic >>>1:25 PM MON 11 MAY 2015DT830 DT430/410Speaker