I dn't know if anybody is aware of this but the DHS still lives under the X-Blue Networks name. They also have a new controller called the Suite-64 that supports 46 phones and a small 9x24 box with a simple flash based voice mail with limited unified messaging.

You can dump these phones cheap or upgrade your customers cabinet with modern voice mail and capacity. We are doing very well with our many installed DHS systems.

Bill.