... Mp3, Manage&Search the voice data,built-in speaker. 1 line, 8 line, 16 line phone recorder. About ... -alone, it works independently without PC. Built-in TF card for large storage capacity, high speed ... start time and date, call in/out numbers. Search by telephone number, length, in/outbound, time, date. Incoming ... the time, date, what numbers were dialed out and how long the conversation lasted (caller ID ...