Philips DECT 6.0 Expandable cordless with digital answering systemExpands up to 8 handsetsHigh definition voice qualitySpeakerphone on base and handset10 Number redial listCaller ID, call waiting caller ID50# Caller ID memory200# PhonebookDual keypad for greater dialing flexibilityBacklit, 98X67 pixel, full graphic, CSTN bright color displayPolyphonic handset ringersVolume control up/downAlarm clockOn/off, play/stop, erase, menu navigation, caller ID, phonebook, numerical keypad, volume keys, mute, speakerphone, redial, flash/call waiting, hold/intercom keys on base stationBattery charging indicationConference callExplicit call transferMicrophone muteFull duplex handsfreeGraphical user interfaceKeypad lockMenu controlSignal strength indicationVIP group with own melody for each phonebook entryBacklit keypadSpeakerphone750 mAh battery capacityAAA NiMH batteries150 Hours standby time12 Hour talk timeDetachable belt clip includedDigital answering system30 Minute digital recording timeMessage notification on the baseGrayACCESSORY HANDSET: PHIL-SE6590BPHILSE6581B