楼宇可视对讲系统对讲分机的外观类似于面包电话机，趋向于多样化。可视分机方面趋向于超薄免提壁挂，但流行最多的仍是壁挂式黑白可视分机。室内分机在楼宇对讲系统中占据成本较大，从发展来看，以带安防报警、信息发布的彩色分机在高档楼盘中应用较多，中档以黑白可视对讲分机居多，低档配套为对讲分机。
The appearance of the extension of the building visual intercom system is similar to the bread telephone, and tends to be diversified. The visual extension tends to be ultra-thin and hands-free wall mounted, but the most popular is still the wall mounted black-and-white visual extension. The indoor extension occupies a large cost in the building intercom system. From the development point of view, the color extension with security alarm and information release is widely used in high-grade buildings, the black-and-white visual extension is mostly used in the middle level, and the low-level matching is the intercom extension.