@paulow wrote:
We recently moved home and had a new VM installation, At the time I wasn't aware that I was committing our landline to the "21CV" system, <snip> I know there are a fair few questions here but you would have thought it could have been explained at the outset.
@paulow
Covering your questions in order ...
If you put through a request to port your number and you can make calls but not receive them then your number port may be ongoing or may be stuck in progress. One of the VM forum team will have to check the status of that for you.
As mentioned by others, any modern phone should work OK with a connection via the back of the hub. Problems normally only happen with much older phones (15+ years old) or where there are particular issues on an individual customer's connection. Your Panasonic phone should work OK if it is only a couple of years old.
The best arrangement for the 21CV connection is with a cordless phone system. Plug the base station into the hub then use as many satellite cordless phones phones as required.
It is possible to wire extension sockets to the VM hub. VM's published information online says that they will do this for you when the 21CV connection is set up.
https://www.virginmedia.com/help/home-phone/virginphone#whatishappening
but based on the regular complaints about it on the forum it often does not happen in a reliable or predicatable way. It may be problematic if the existing phone sockets are a long way away from the hub and/or if a BT master socket is involved in the previous extension wiring.
The only way to deal with nuisance calls on a VM phone line is by buying your own third party equipment such as trueCall or by having a phone with trueCall screening features built in such as some of the phones from BT. There is no VM equivalent of BT Call Protect on VM landlines. Your existing Panasonic phone may have some simple features such as individual number blocking etc.
Hope that helps clarify some things.