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May 20, 2016 at 8:34 comment added jcbermu @ToddWilcox That's true. To provide DSL the telco have to remove or replace the old coils with ones which are transparent to DSL.
May 19, 2016 at 15:38 comment added Todd Wilcox If I understand correctly,. loading coils have been removed and/or made unnecessary in many areas (of the US, at least) because it is not possible to provide DSL through a loading coil, so during the DSL boom, last mile infrastructure in the US was upgraded in many areas to remove/bypass loading coils. The number I remember for the distance between loading coils on a POTs line was 10,000 feet, which is why DSL required one to be less than 10,000 feet from the nearest central office.
May 19, 2016 at 13:28 history edited jcbermu CC BY-SA 3.0
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May 19, 2016 at 11:23 vote accept user5653890
May 19, 2016 at 11:20 comment added user5653890 Thanks, I have searched the internet after reading your comment and found this useful for future readers; earlier i was looking into wrong direction. :: link
May 19, 2016 at 11:18 history edited jcbermu CC BY-SA 3.0
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May 19, 2016 at 11:06 history answered jcbermu CC BY-SA 3.0