Thanks, Dean. I'm very familiar with circuit ID components. I've just never seen one with the "CSNA" circuit identifier part, nor has my customer. They're paying a hefty monthly rate to Verizon for it in DC for an address that is less than a block away. I'm thinking it's old and abandoned (pre-IP) technology. Bell Atlantic toyed with a product they called "CO LAN" in the early 90s, and I think this might be a remnant of it.


Ed Vaughn, MBSWWYPBX