SPECO 8 Channel Network Server with POE, H.265, 4K- 12TB, Part# N8NU12TB over the ear headset Operates on 25 or 70

Operates on 25 or 70 volt speaker lines

Speech Processing : ALC

out-of-band(RFC 2833) and SIP INFO

Analysis and Reporting Technology foe HDD) is Digital Deterrent® supports up to 8 audio files for triggering during sensor or motion detection

SAMSUNG SRD-852D is a CIF Real-Time DVR with 12TB AV rated storage designed for surveillance that has a built-in DVD burner and supports up to 4 internal SATA hard drives

SPECO 8 Channel Network Server with POE, H.265, 4K- 12TB, Part# N8NU12TB over the ear headset Operates on 25 or 70The exceptional Speco N8NU12TB 8 Channel NVR with 8 Built In PoE+ Ports 4K Plug & Play Network Video Recorder in 12TB HDD storage with easy plug & play feature have built in S. M. A. R. T technology (Self Monitoring, Analysis and Reporting Technology for HDD), supports up to 4K (38402160) high resolution for live view, recording, and playback, have EZ Wizards for ease of use and setup. Features: EZ Wizards For ease of use and setup Supports up to 4K