<snip> What am I supposed to do? This is anything but an improvement in service. <snip>
The issue of the phone switchover and how VM deals with customers' existing phones and extension sockets has been mentioned many, many, many times before on here.
Over time, VM has given every possible combination of answers on the subject of assisting with this, from a flat "no", to a full "yes" via a "maybe", if it is not too difficult, in between. Until yesterday, one of their help pages on the phone switchover advised they would reconnect extension sockets, to the hub phone socket, free of charge.
Unfortunately, as of yesterday, that help page has disappeared and been replaced with this
The only mention of extension sockets is now
I've been asked to book a technician
If you’ve been asked to book a technician, it’ll be for one the following reasons:
• You rely on your landline for accessibility reasons and need an Emergency Back Up Line, so you’re always able to call the emergency services.
• You use services such as a monitored burglar alarm, telecare, or have other phones connected to extension sockets. If you use any kind of service that requires a phone line, you should contact your provider and let them know about the switch to make sure they’re compatible with a fibre service.
• You can’t place your phone near the Hub.
So, I'd suggest that you could try to request a technician as part of the switchover as you have phones connected to extension sockets plus you can't place your phone near your hub (that is if you want to try to keep things as they are but this would probably involve some internal phone wiring to be completed to make it all work). Also see the caveats about old corded phones below.
VM has fairly recently dropped its technician fees to £25 to modify wiring in the home so I am now going to have a wild guess that VM are going to seek to avoid doing any of this work where they possibly can and, if they are pressed, will offer to do it for a fee.
The reply from Travis_M at #2 didn't really answer any of the questions you raised about how you would deal with this for your particular setup, which you have described in detail.
On a minor technical point, if your corded phones are quite old (early 2000's or before) you may find that they won't make a ringing sound unless they are connected to a master socket and the master socket is linked to the hub with the other extension sockets after switchover. The old master socket contains a component (a ringing capacitor) which caused older phones to ring. The connection from the hub does not have this, so non-ringing of older phones on a hub phone connection is regularly mentioned on here.
As an alternative to the above (if it is feasible/affordable for you) you could look at getting a set of cordless phones. Plug the base station into the hub's phone socket after switchover and use satellite cordless phones around the home as required. Cordless phones are how all providers are envisaging phone connections from the router will be used. VM’s expectation now seems to be that the customer will just shoulder the cost for this (probably about £100-ish for a decent triple set of cordless phones).
Getting some new cordless phones is probably the best option, if possible, as you will be starting with modern phones on the new 21CV hub phone connection, plus you won't have to deal with the doublespeak madness of whatever VM's telephone extension policy happens to be on the day of switchover. If you do get new cordless phones, buy from somewhere with a good returns policy just in case (unlikely) that you run into some other unforeseen issue connecting phones to the VM hub.