Profile: Informer Computer Systems is a designer and manufacturer of industry standard 9-1-1 call center equipment. Our products include network control modem, 19 slot NCM rack, 6 slot NCM rack, NCM power/fuse indicator, NCM alarm unit, ANI/ALI controller and headset box. Our network control modem is a full-duplex bell 103 2-wire leased line modem with triple redundant error correction. Our NCM provides a fail-safe modem communication link, supplanting the traditional metallic connection that is prone to faulty operation due to weather exposure or accidental short-wiring. Our 6-slot NCM rack is a pre-wired connectorized shelf designed to hold up to six NCM cards.