The move to switch off 3G services is probably bringing back memories of the initial switch over of CDMA to 3G.
While the system is better now, there was a definite step back early on.
The big difference between the two shut downs is this time it's not "just" the ability to make calls at risk.
It is a wide range of technology, some of which has been "set and forget" for a number of years, impacted.
Agricultural transactions and day-to-day business are becoming more and more reliant on connectivity and communication so the ability to make a phone call or load a web page is more critical.
There are also safety implications that come from unreliable phone service.
While Telstra can argue most mobile phones these days have moved on from 3G, I'm sure everyone has experienced driving into a pocket with only 3G capability.
And many live in those pockets.
On top of that are the investments people have made across the farm.
Weather stations and pumps may become obsolete.
This requires first identifying all the potential tech, determining the best option to replace and then paying for the upgrades.
It is clear why Telstra is providing plenty of warning ahead of its shutdown.
It also needs to come through on promises of support and 4G where it's needed.