可视电话是一套楼宇可视对讲系统。其灵活性在于:高层住宅几十家住户可安装一个大系统,多层住宅几十家人家可安装一个小系统,单个家庭也可自成系统。若要造访501室家庭,访客即可在整幢楼的大门外或直接在分户门外,按下501室键,501室内随即响起清脆的电话铃声。紧接着,话机旁的屏幕上便现出了门外造访客人的面容。如果主人想与客人打个招呼,可以拎起 Video phone is a building video intercom system. Its flexibility is: dozens of high-rise residential tenants can install a large system, dozens of multistorey homes can install a small home system, a single family can also be self-contained system. To visit Room 501, visitors can press the 501 Room button outside the gate of the whole building or directly outside the door of the home. Room 501 will ring a crisp telephone ring. Then, the screen next to the phone shows the visitor’s face outside the door. If the owner wants to say hello to guests, you can pick up