The VIP-120 One-Way IP Ceiling Speaker enables voice access to a single zone of one-way paging over an IP-based LAN/WAN. This allows a page zone extension anywhere on the network. The speaker level is electrically adjusted during set up. The enclosure is made of steel with a durable white powder coated finish. Power is provided to the VIP-120 via a Power over an Ethernet switch meeting the 802.3af specification. – Exceptional Voice & Music Reproduction – Contains Its Own Built-In Amplifier – White Epoxy Finish – Volume Control – SIP And Multicast Enabled – Easy To Install via RJ-45 – PoE (802.3af) – Live, Recorded Or Scheduled Messages – Easily Connect Loudspeaker System To Existing Computer Networks 10/100 – Compatible With Cisco, Nortel, Avaya And Most IP Telephone Systems – One-Way Paging – Web Interface For Control And Setup – Can Operate Over Secure Networks – Paging Prioritization – Background Music – Web-based Firmware Upgradeable – High Efficiency – Line Out Supports Amplified Speakers – Wireless Option – Synchronized Clock Option – Full Supervision – Test / Setup Tones – Software Developer Kit Available – Compatible With Text/Audio To IP Telephones – Supports Syn-Apps, Checkmate,PagePro IP – DHCP