Video door phone/entry/bell system,access control,door station/unit/camera,indoor phone/monitor,security product,video intercom. JB-304 VILLA INTERCOM SYSTEMNameDoor phone system,access control,door station/camera,indoor phone/monitor,security product,video intercom.Features DIY system with PLUG & PLAY connection.Up to 4 door stations and 4 indoor phones.Intercom between indoor phones.Calling ...