LABELLING PROGRAMMABLE KEYSInsert the end of a paper clip into the notch of the clear cover. Pushthe cover sideways. Lift the cover and remove the designation strip.Label the designation strip. Replace the strip and cover.LCD 24B or STD24B KEYSET LAYOUT4SCROLLKEY Used to scrollthrough displays.16 PROGRAMMABLE KEYSWITH TRI-COLORED LIGHTSUsed for CALL buttons,intercom calls and many othersystem features.VOLUME CONTROL KEYSUsed to set independent levelsfor handset, speaker, backgroundmusic, ring and page volumes.LAST NUMBER REDIAL KEYMEMORY(SPEED DIAL) KEYDO NOT DISTURB KEYSPEAKER KEY Used to switchcall to speakerphone.8 PROGRAMMABLE KEYSWITH RED LIGHTS Used tocall stations directly, for One-Touch dialling and many other systemfeatures.TRUNK FLASH KEYMICROPHONEFor handsfree operation.32 CHARACTER DISPLAYTwo lines with 16 charactereach.On LCD 24B onlySOFT KEYS Used toactivate feature via thedisplay. - LCD 24B onlyTRANSFER KEYHOLD KEYANSWER/RELEASE KEYPULLOUTDIRECTORY TRAY