BT used fibre many, many years ago for voice lines - the dreaded TPON - Telephony over Passive Optical Network.
This leap into new technology (60's and 70's I think?) caused problems with subscribers in TPON areas not being able to get ADSL until a "copper overlay" was installed - installing copper pairs instead of the TPON fibre.
Milton Keynes was the classic sufferer from this.
The logic of replacing optical with copper (for ADSL) and then with FTTC amazes me but GPO / BT always had a habit of either doing wonderful thing with old technology (the original STD dialing with Strowger electro mechanical kit) or getting stuck down a technical dead end (at the time) with TPON.
FTTC in 10 years time will probably seem a stupid move as well!
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