CNS5500IND network industrial intercom terminal is a full-digital A/D conversion signal processor based on TCP/IP transmission protocol, dual network redundancy design, for wall mount use at any place. The device is equipped with hand-held microphone and handset, built-in monitor speaker and pickup microphone, can achieve hands-free two-way intercom function, hands-free paging function. The panel has a dial key combination, can be partitioned broadcast, and all zone broadcast, or single zone broadcast.