Philips DECT/VOIP Additional Handset for VOIP841 Series HNDSET FOR VOIP841 ADDITIONAL HANDSET;COLOR LCD SCREEN;EASY-TO-USE SKYPE FEATURE; FEATURES SPEAKERPHONE, POLYPHONIC RINGERS, 5-LEVEL VOLUME CONTROL & GREEN BACKLIT KEYPAD;CALL MANAGEMENT FEATURES INCLUDE CALL ON HOLD, CALL TRANSFER, CALL WAITING CALLER ID, MESSAGE WAIT