Nearly all phone lines have a cabinet for the phone system, (though I think it can be underground, and places very close to the exchange may be supplied direct from there. Lines supplied direct from the exchange cannot get FTTC/Infinity as they have no cabinet).
ADSLx broadband comes down the line from the exchange on the normal phone system.
For a cabinet to be enabled for FTTC/Infinity, a second cabinet is put near to it, with a fibre feed from the exchange. The two cabinets are then connected so the fibre feed can get onto the copper between you and the original one, which then supplies everything to you just like it does now.
When an exchange is enabled, not all cabinets are sure to get enabled. Some will be, by definition, and maybe all, but not necessarily all.
If you put a phone number into
this checker, or if you haven't got a relevant number the address is next choice, then the post code, you will get at scheduled availability date for the cabinet for there. However the phone number is the safest, as when it comes to the exchange getting enabled the cabinet date can change to later, or even get removed. It's complicated, but still the best guide there is for people like us.
If the estimate is under 15Mbps then the BT (Retail) Infinity checker will show as not available and not scheduled. Zilch. But the checker I have given you there will show it even when much lower, and most of the ones on my list will supply. As you can see, some even at 5Mbps.
If the estimate is around 12Mbps or higher then it is almost certain you would get over 15Mbps anyway. Everybody I have seen gets a lot more than the estimate.
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