IS-640P POE IP Speaker provide a user-friendly control and simple voice broadcasting. The product is designed to provide easy use for any office,department store,factory,school to be able to quickly broadcast announcements to their any assigned office or branch or classes IS-640P can work P to P ,IP to IP and Compatible with IP-PBX,Traditional PBX,Asterisk Catalog User manual Presentation Option: IP Broadcasting System User can broadcast announcements to a group of office or branch orclasses. 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 Features SIP (RFC 3261) compatible Web-based configuration Web-based firmware upgradable High efficiency speaker driver Powerful built-in amplifier:20W Remote control Work with extra IP Speaker Server to make group broadcast Specifications: Protocols:SIP (RFC2543,RFC3261) Codec:G.711 u-Law,G.711 a-Law,G.729A,G.729A/B LAN connection :RJ-45 connector Ethernet I/F 10/100 Mbps option: Power over Ethernet(POE) injector spec: IEEE 802.3at (max.30W) (compatible with non-standard/standard POE Injector,POE Switch) Dimensions 17.5 X 28 X 24.5cm Weight: 3kg Warranty 1 year Application: System Integrator Large Multinational Corporation Design firm