LCD video doorphone 1.with IR CCD camera 2.Easy installation&operation 3.CE,FCC,IQNet,CCC,FC etc. JB-2000 APARTMENTS INTERCOM SYSTEMFeaturesThe system ... Up to 8 guard units and 8 perimeter gate stations.Network system supports many buildings.TCP/IP technology is adopted.Intercom between ... phones technical parameters: Display: 4 CRT/TFT-LCD, or 3.5'',5'',5.8'' & 7 TFT-LCD Display: 420TV lines(B.W), ...