Bogen UTI312 Universal Telephone Interface (for Multi-Zone Paging Systems)The UTI312 Zone Paging Contoller provides multi zone paging for one way applications such as self amplified speaker systems, with each output capable of providing audio for up to 150 self amplified speakers. The UTI312 is compatible with all standard analog port types. Each UTI312 comes with a pre installed ZX3 module for three zones of paging and is expandable up to 12 zones. The UTI312 offers up to 24 programmable paging zone groups as well as all