This is the InformaCast model.

Valcom's VIP-9831A One-Way IP Stealth Horn is a self-contained paging system which enables voice paging up to 300 feet from an Ethernet connection. The VIP-9831A consists of a horn and Network/Audio Interface board allowing standalone capability when used with a SIP enabled telephone system or can be accessed from a variety of Valcom managed VoIP products. The stylish, contemporary design blends well with various indoor environments.