Of course, this whole flame-fest is pointless. T-1 can't be 2-wire. T-1 is a facility. Circa 1962, it *carries* DS-1 format bits, over 2 pairs, with repeaters every 6Kft (except the first is 3Kft from the CO..). {Gee, the exact spacing of 88mH load coils....must be coincidence..} You can get those DS-1 bits (that's what really you want...) delivered over: T-1, HDSL, as part of something bigger, <RFC-1149>, whatever. And 95% of the time, you likely don't care....as long as the bits arrive. Just like the guy downstream does not care if you have a cisco 9000 or a HAL 9000, as long as his service stays up. Can we go back to worrying about things that SHOULD scare all of us, such as MPAA, COPA, RIAA, and CALEA; rather than worrying about the ghostly remains of RabbitNet? -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433