HAC (hearing aid compatible)Redial memory - 5Pre diallingOne touch memories - 2Phonebook Positions - 20Handset volume settings (5 boost)Speaker volume control - 5Ringer volume settings except off - 5Volume boost button ( 10 dB)Two-way speakerphoneMulti handset call transferMulti handset intercomMulti handset conference callTwo-touch memories - 9Microphone MutePriority call alert (VIP)Low battery warningKeylockCall timerHandset LCD displayMenu navigation14-segmentDisplay size ( H x W mm) 42x27Lines / Characters - 1Icon lines / icons - 2Backlit displayBig display fontClock AlarmKey toneLanguagesRingerMonophonic ring tones - 5Polyphonic ring tones - 5Ringer volume settings except off - 5Ringer LampRinger off settingCaller IDCaller ID memory - 10DECT baseBase ringerPaging Maximum number of handsets per base - 5