... the stand-alone type, we have 1-line and 8-line. And for the PC based cards, we ... system that activates and deactivates on a single line normal analog telephone. Stand-alone, it works ... formatIt can be used as one Mp3 player with speaker. lSupport FSK and DTMFManage and inquire the ... : 86-13537695887 DAR-1001 1 Line, 2 Line, 8 Line, 16 Line Standalone Voice Logger with SD card work with PBX FSK/DTMF