broadband ADSL works, but not landline?

I thought they came from different street cabinets. Have you spoken to neighbours?

Reports that I've read in the past said that a noisy line will stop a landline working but have no effect on the ADSL.

Dont cancel it.

Broadband is RF. It can jump gaps that baseband (speech) cannot.

You almost certainly have a dodgy line. The engineer will use a TDR on it and find out where its dodgy and remake the connection.

Hint: treat your openreach engineer like royalty. Tea Coffee buns and biscuits. Remember its not his/her fault and (s)he's trying to help

No. Noise degrades everything but doesn't stop either actually working. But an open circuit will stop the phone working yet can still allow broadband to work.

They can come from different cabinets. A few years ago a car hit both cabinets, one of which supplied our landline, while the other had the DSLAM equipment. My broadband continued to work without problem, while landline calls did not work at all.

It took several days to get the landline back.

The 'phone requires both connectors whereas ADSL is incredibly good at working on one connector and finding its own earth.

ADSL is not cabinet based. The DSLAMS are in the exchange.

FTTC uses VDSL and that IS cabinet based.

Landlines do not 'use cabinets' at all. The line continues on to the exchange

Phone lines are two line twisted pair. I don't think either are earthed.

Broadband can work and the phone not if there is a broken connection to the exchange. In the case of ADSL being RF (radio) it can 'jump' a broken wire, and in the case of VDSL the break could be upstream of the cabinet, where the broadband terminates. With VDSL (FTTC) the copper continues on to the exchange for landline usage.

It's fairly common

Landlines can use cabinets, but they're just passive junction boxes (as they have been for a century). It's possible the car took out a junction box cabinet between the exchange and the FTTC cabinet - result BB works but no voice.

(not sure how common it is to have a junction on this path, but possible)

Theo

It's what I had assumed. Here are a couple of photos I took at the time:

I wonder how damaged the car was!

See my reply to Theo.

Well yes, if by 'cabinet' you mean ordinary passive wiring rack. Round here those are mostly underground And the FTTC cabinets have a fast track back to the exchange.

Sure looks like one cabinet to me.

Around here, the fibre cabinets are steel, but before that, the land-lines passed through local terminals to larger multi-core cables, in cast-iron cabinets that have probably been here since most of the houses were built in the 1930s.

When FFTC was introduced, they placed steel cabinets alongside the cast-iron ones, so the digital and analogue signals could be combined there.

Bollocks. Those are called “exchange lines”. Most customers will be connected through cabinets.

Tim

Usually called "Exchange Only" or EO lines.

Agreed, but not out in the sticks.

Oh dear, they are balanced either side of earth, just like a balanced feeder but twisted to prevent/cancel crosstalk to other twisted pairs.

So the broadband is still injected onto the customers cable at the cabinet independent of any connection to the local (or not so local) exchange.