Lenny and I put a huge amount of time into this, from late 1985 through much of 1986. We eventually got into the switches for all of Pacific Bell, then Manhattan, then Utah and Nevada, and in time many others throughout the country. Among these was the Chesapeake and Potomac Telephone Company, or C&P, which served the Washington, DC, area, including all of the DC-based departments of the Federal government as well as the Pentagon.