Background music input, automatically mutes inzone being paged
Page override for special priority announcements
Features are programmable per zone
Built-in tone generator for night ringing, time clock tone, doorbell
Accepts pulse and tone dial
Supports up to 2 talk back speakers and 40 one-way speakers per zone
Battery back-up input
UL listed
Access: page port on selected telephone systems, PBX loop start or ground-start trunk port, electronic or 1A2 line key (line card required), or dedicated single line phone set
