The IP-A1SC15 connects to your VMS network with a single LAN cable and can be assigned an IP address - allowing you to combine video and audio systems. Respond immediately to emergency situations with live announcements or prerecorded messages with one of four different audio broadcasting modes (SIP Direct Call, Multicast Streaming, VMS Broadcast and Remote API). This allows the broadcast to be prioritized right away - overriding any other current announcement.