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Thread Index [isp-clec] Re: Virtual NPA/NXX
On Saturday 31 May 2003 02:59 am, ML - BackUP Telecom wrote: > When you are talking intermachine trunks between LECs and CLECs, things are > totally different. If you are a CLEC back-hauling traffic across LATA > bounderies, you will be charged for the ciruit off the FCC tariff. In fact, > CLECs can be charged off the FCC tariff even if they are in the same LATA > and just crossing LEC boundaries. An example would be here in Portland, > Oregon where Qwest covers Portland and half of the surrounding suburbs and > Verizon covers Beaverton and the other parts of the Portland suburbs. That's right -- Unbundled Network Elements only apply within a given ILEC's service area; Special Access tariffs are needed to get inter-ILEC channels. In some cases it might be a state tariff though, not that it would usually be cheaper that way. But I am tryng to clarify the difference between intermachine trunks, whichy ou and I are talking about, and subscriber circuits, which Rod is talking about. > In the CLEC world, you can't really have a virtual NPA/NXX. You can have an > SPOP (Single Point of Prescence) in the LATA, but you are required to get a > distinct NPA-NXX for the rate center that you want to cover. That NPA-NXX > will be able to accept all calls within the local calling area or EAS area > if there is one, but you can't have one NPA-NXX that covers the whole LATA. > SPOP allows you to route all your traffic to a single point in the LATA > instead of having to collocate or have a HUB-MUX in each local calling area > of the LATA. Terminology alert: What you call "SPOP" is now frequently called "VNXX". (I rather like the term "number aggregation" but it has not been common as of late.) What I think you call VNXX -- a prefix local to the LATA -- is sometimes called an "oddball" prefix. CLECs can't get oddballs. It's usually called VNXX nowadays if/when the CLEC has a prefix code that enables inbound local calling but does not actually have local subscribers there. ILECs treat it as a pejorative term, as do some regulators. So I advise clients to, uh, avoid being so labeled. Not rational rules, but politics. > If you are trying to become a CLEC, I don't understand why you would want > to go through Level 3 or Focal unless they have laid their own fiber there. > Just because they say they have a network in a city, doesn't mean that they > aren't leasing facilities from the LEC. I was suggesting that Focal rents switching, so you can get some T1s off of the line side of their switch to feed dialtone (in T1 format, or via your own analog line terminators) to your own subscribers. The ILEC usually supplies the raw pipes. -- Fred Goldstein k1io fgoldstein at ionary dot com ionary Consulting http://www.ionary.com/ ------------------------ANNOUNCEMENT--------------------------------- --------------------------------------------------------------------- >> Recycle Your Hardware << Clean out your closets and make some cash. Reach thousands of ISP equipment buyers. http://www.isp-equipment.com ---------------------------------------------------------------------- ----------------------------------------------------------------------
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