The Bogen PCMTIM Telephone Interface Module is designed for the Bogen PCM Zone Paging System. Only one PCMTIM module is required per system (1 through 99 zones). The PCMTIM provides the telephone interface (including talk battery), night ringer input, emergency override input, background music source input, and auxiliary relay contacts for the system. The module is also responsible for all tone signaling features. Controls are included for background music volume and tone volume.