... Out:2ch D1,CIF network Video Server HK-DVS 404 Video Server,ip Video Server,network Video Server camera,surveillance equipment,security equipment Features ... -directional real time transmission of audio talk-back Built-in Web Sever to realize remote surveillance, control via IE Support remote ... ,Alarm In:8 CHS,Alarm Out:2 CHS Built-in Web Sever to realize remote surveillance, control via IE Record on ...