AUTOMATIC RECOGNITION: Corded phone is designed with, DTMF caller ID, which can automatically identify. ^^ 16 BIT
LCD DISPLAY: Corded telephone has a 16 bit LCD display with real time date and day display. LCD brightness 5 levels adjustable.
^^ CALLER NUMBER: Corded landline records up to 57 groups 8 digits or 36 groups 16 digits of caller numbers and call times.
^^ CALLING NUMBER: Wired telephone records up to 16 groups 8 digits or 9 groups 12 digits of caller IDs and call duration records.
^^ FLASH OFF TIME: Corded home phone optional flash off time 300 600 1000ms, which can satisfy your kinds of needs.