Index238audio settings 166automatic dialpad lock 160Automatic key lock feature 160Bbatteries 22charge display 25charging and operating times24charging guidelines 23important information 22installing the battery pack 18battery charge display 25battery packcharging (4075 only) 220installing or removing (4075only) 218belt clip 214installing 214uninstalling 217Bluetooth wireless moduleinstalling 18Bluetooth wireless technologyaccessing the configurationmenu 229adding a headset 231connecting and disconnectinga headset 232deleting a headset 233enabling and disabling a head-set 231headset installation 229module installation 225Bluetooth wireless technologyheadsetInstalling the module on 4070Handset 226Bluetooth wireless technologymoduleremoving the module 227Ccalculator 137calculator icons 139calculator, stopwatch, and alarms137calendar 128accessing 129changing the format 129call and message statistics 188call mode 29, 38call settings 187call settings menu 188Caller filteractivating 196deactivating 197Caller filter configuration 191Caller filter listadding an entry 193deleting all entries 195deleting an entry 194editing an entry 194Caller list icons 69calling features 53Calls 53calls list 68Charge display 25charge display 25chargerinstalling 20charging the batteries 22CLID (Calling Line Identification)68configuring shortcuts 157connectivity settings 208
