["IS-3840 is IP Audio Gateway (build in amplifier). Easy upgrade from traditions broadcasting system to IP broadcasting system User can broadcast announcements to a group of office or branch or classes. IBS-5: handle 5 pcs IS serial devices IBS-10: handle 10 pcs IS serial devices IBS-20: handle 20 pcs IS serial devices IBS-40: handle 40 pcs IS serial devices IBS-60: handle 60 pcs IS serial devices IBS-80: handle 80 pcs IS serial devices IBS-200: handle 200 pcs IS serial devices With RJ-45 port of standard 10/100Mbit Ethernet; It can make simple settings via browser with WEB interface With fixed IP, DHCP and PPPoE, it can link to the internet. It can output the different scheduled broadcasting or voice broadcasting from the broadcasting system separately. It supports the compression encoding format of the voice processing agreement G.711 It can simultaneously register 3 broadcasting system hosts. Business (Office,Hotel,Restaurant,Shopping Center,Coffice Shop,prison,hospital,factory,govement) Education (School, university,Stadium,School corridor) Public Place(Museum,Reception,Play Place) Transportation(Airport,Parking lot, Goods Yard,train station)", "Internet Audio Receiver with IP", "With RJ-45 port of standard 10/100Mbit Ethernet; It can make simple settings via browser with WEB interface", "With fixed IP, DHCP and PPPoE, it can link to the internet", "It can output the different scheduled broadcasting or voice broadcasting from the broadcasting system separately", "It supports the compression encoding format of the voice processing agreement G.711", "It can simultaneously register 3 broadcasting system hosts"]