Traditionally, in our trunk routing and rating system, we deal with intra- and inter-state rates by mapping the ANI and the DNIS to regions, which in turn have prefix lists associated with them. If the regions match, it's an intrastate call. If they don't match, it's interstate. If one or both of them cannot be mapped to a region, our system allows you to choose default inter- or intra- treatment in such situations. Recently, a customer approached us with a rate deck, from one of their wholesale termination vendors, that had an additional "indeterminate" rate column on it. The rates didn't seem to differ substantially from the intrastate rates (which tend to be higher), but they were different. Is this a new trend? Is this something we need to support to be on the ball? Or is this an exotic vendor? Thanks, -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/