Load up "Google Earth" and locate your estate.
In the top row of icons, one will display "Show ruler" when the Cursor is on it - Click.
Use the Cursor to plot the "likely" route from the Cabinet to your house - need not be roads, paths etc, so accommodates overhead cabling.
However, be wary. My Cabinet is about 25 metres directly across the road from my front door, where the phone line comes in - but takes about 125 metres to get there, via a small, footpath-level, Junction Box on the foundations of a neighbour's house.
Apart from that, it is totally underground, so not readily fund and confirmed.
To compound it, the main cable ducting from the Exchange to that cabinet are under the footpath immediately to the side of my house, with a three-section jointing chamber included.