IP network intercom system IP one touch emergency call intercom terminal(1-button, audio & video)--TBV-8201A

IP network intercom system IP one touch emergency intercom terminal(1-button, audio & video)--TBV-8217A

IP Network Intercom System TCP/IP One touch emergency call Intercom System Terminal- TCP/IP Based Intercom System Panel

IP network intercom system terminal(1-button, audio)--TB-8216A

It can actualize two-way calling and two-way intercom among ward door substations and wad substations.