... activates and deactivates on a single line normal analog telephone. Stand-alone, it works independently without PC. ... time and date, call in/out numbers. Search by telephone number, length, in/outbound, time, date. Incoming ... 5 days a week, when with the 16 GB memory Micro SD card. Yet no computer is ... caller ID service required). This DNR feature, or dial number recorder feature, is very helpful to the ...