DECT 6.0 TechnologyCallerID/Call WaitingBlue Backlit Keypad and DisplaySleek Thin DesignHandset SpeakerphoneExpandable up to 5 Handsets - using the rz6030 Accessory HandsetVoicmail waiting indicatorTransfer Calls Between HandsetsConference an outside call Between Handsets50 Name/Number Phonebook DirectoryHeadset Compatible (2.5mm)WiFi Friendly - won't interfare with wireless networksPage/Handset Locator