 | The DBS 576 is a robust, feature-rich, flexible, reliable phone system that can grow with the company it serves. The DBS 576 supports a larger phone base and is expandable from 0 to 576 ports. Click here to learn more about Panasonic DBS 576. | |  | The Panasonic DBS 576 HD was designed for small to medium sized applications, and incorporates several high-end PBX functions. With its powerful High Density Backplace, the HD can expand easily from 8 extensions to 116 ports in the same cabinet. Click here to learn more about DBS 576 HD. |