Whose responsibility is it to inform me that the telephone pole to my property is being changed?

[#1]

Having an alternative mean of internet access is something many people who work from home forget about, or don't bother with..

Taking it a stage further and business resumption planning seems to have been forgotten by many companies these days. 

[#2]

On the topic of resilience of communications systems, this is something that not just individuals and businesses no longer consider,  the Government & regulators have abandoned the concept - and the telecoms companies have taken advantage of that to reduce costs (and maximise profits)

The POTS system was highly resilient - powered by the exchange even during power cuts.

Now, FTTP is considered more reliable - which it almost certainly is - but it is less resilient. In a power cut every user needs a UPS for the ONT, router, and ATA (and probably DECT phone). Also, when there is a cable break it can affect whole towns at a time as a single fibre is capable of carrying all the traffic.

VoIP is even worse via FTTC as the cabinets don't have any significant UPS duration.

[#3]

Stick a backhoe through a cable bundle. Drag an achor over a subsea cable.