Details:

Pentaplex: Live, Record, Playback, Back-up and Network at the same time
Backup: CD-RW (Option: DVD-RW), USB 2.0 and NET backup supported
PTZ camera control in local and remote area
E-mail notification
3G support
Network Viewer:
Static, Dynamic IP and DDNS, Support Internet Explorer and special client software
Remote Live Monitoring, file searching, Backup, Playback and PTZ camera control
Remote Configuration, Firmware Upgrade and Event (Alarm, Motion) Notification
Full duplex two way audio transmission.