analog to digital network video server 1.support D1 resolution 2. Two-way audio, H.264 3. support IE 4. CE, FCC, Rohs ... of places, facilitate Internet.2) Use Advanced MPEG4/H.264 Coding, higher compression ratio, Clearer image.3) Support PAL / NTSC ... transparent serial port supporting, PTZ controlling, High Speed Dome Camera and other external devices.16) Support multiple users’ simultaneous access, ...